Q: What is the sum of all factors of the number 21,123,131 excluding 21,123,131?
A: 918,421
The factors of the number 21,123,131 are: 1, 23, 918397, 21123131.
If you add them up, you will get the total of 21,124,049. Now subtract 21,123,131 to get 918,421