Q: What is the sum of all factors of the number 1,221,213 excluding 1,221,213?
A: 639,715
The factors of the number 1,221,213 are: 1, 3, 7, 21, 58153, 174459, 407071, 1221213.
If you add them up, you will get the total of 1,221,852. Now subtract 1,221,213 to get 639,715