Q: What is the sum of all factors of the number 2,157,215 excluding 2,157,215?
A: 655,105
The factors of the number 2,157,215 are: 1, 5, 17, 41, 85, 205, 619, 697, 3095, 3485, 10523, 25379, 52615, 126895, 431443, 2157215.
If you add them up, you will get the total of 2,157,870. Now subtract 2,157,215 to get 655,105