How to make Wolfram Alpha give me a range of possible answers for an equation if the subject is assumed to be an integer? I am trying to use Wolfram Alpha, and I am trying to get it to give me a range of possible answers for y=(391-x)/x, if y was an integer. However, there are two problems I face with this. The first is that I'm not sure as to how to tell WA that I want both my pronumerals to be an integers. I found this answer on how to do it but it seems to be outdated.
My second problem is that even if WA know that  both x and y are positive  integers, how would I tell it to give me a set of possible values for x and y in order to satisfy the equation?
If anyone can help me, please give me an answer. Thanks!

Try  solve y=(391-x)/x over the integers
