Inspired by Problem 1025 and Project Euler 12.
Given n, return the number y of integers that divide N.
For example, with n = 10, the divisors are [1 2 5 10], so y = 4.
It's easy with normal integer but how to proceed with big number?
Back and Forth Rows
Remove all the consonants
Bell Number calculator
Longest Collatz Sequence
Expression or variable?
Find my secret number
Two functions (to be sure)
Mirror, mirror on the wall, who is fairest of them all?
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