Q: What is the sum of all factors of the number 21,004,321 excluding 21,004,321?
A: 1,615,731
The factors of the number 21,004,321 are: 1, 13, 1615717, 21004321.
If you add them up, you will get the total of 21,004,322. Now subtract 21,004,321 to get 1,615,731