public static List < Integer > getDiv ( int n ) {
  List < Integer > l = new LinkedList < > ( ) ;
  l . add ( 1 ) ;
  for ( int i = 2 ;
  i <= ( int ) Math . ceil ( Math . sqrt ( n ) ) ;
  i ++ ) {
    if ( n % i == 0 ) {
      l . add ( i ) ;
      if ( i != n / i ) l . add ( n / i ) ;
    }
  }
  return l ;
}

public static List < Integer > getDiv ( int n ) { List < Integer > l = new LinkedList < > ( ) ; l . add ( 1 ) ; for ( int i = 2 ; i <= ( int ) Math . ceil ( Math . sqrt ( n ) ) ; i ++ ) { if ( n % i == 0 ) { l . add ( i ) ; if ( i != n / i ) l . add ( n / i ) ; } } return l ; }
(method_declaration (modifiers) type: (generic_type (type_identifier) (type_arguments (type_identifier))) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (generic_type (type_identifier) (type_arguments (type_identifier))) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (generic_type (type_identifier) (type_arguments)) arguments: (argument_list)))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal)))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (cast_expression type: (integral_type) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))))) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (identifier)) right: (decimal_integer_literal))) consequence: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (binary_expression left: (identifier) right: (identifier)))) consequence: (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (identifier)))))))))) (return_statement (identifier))))