Q: What is the sum of all factors of the number 172,904 excluding 172,904?
A: 151,306
The factors of the number 172,904 are: 1, 2, 4, 8, 21613, 43226, 86452, 172904.
If you add them up, you will get the total of 173,055. Now subtract 172,904 to get 151,306