Why is there no output?

Question

So I wrote this and it seems to generate the correct numbers for each tests, however, when I use the number from problem #3 on Project Euler, it seems to output nothing. Why?
https://code.sololearn.com/cs7mfBg2795p/?ref=app

Answer 1

Output:
71
839
1471
6857

It is right.

Answer 2

Denise Roßberg Somebody had answered this question by commenting on the code directly rather than posting the answer here. Lol. That's why it works now.