Q: What is the sum of all factors of the number 21,028,397 excluding 21,028,397?
A: 1,617,583
The factors of the number 21,028,397 are: 1, 13, 1617569, 21028397.
If you add them up, you will get the total of 21,028,398. Now subtract 21,028,397 to get 1,617,583