Q: What is the sum of all factors of the number 20,721,355 excluding 20,721,355?
A: 4,144,277
The factors of the number 20,721,355 are: 1, 5, 4144271, 20721355.
If you add them up, you will get the total of 20,721,359. Now subtract 20,721,355 to get 4,144,277