Q: What is the sum of all factors of the number 1,221,087 excluding 1,221,087?
A: 639,649
The factors of the number 1,221,087 are: 1, 3, 7, 21, 58147, 174441, 407029, 1221087.
If you add them up, you will get the total of 1,221,726. Now subtract 1,221,087 to get 639,649