Q: What is the sum of all factors of the number 21,340,609 excluding 21,340,609?
A: 499,583
The factors of the number 21,340,609 are: 1, 53, 263, 1531, 13939, 81143, 402653, 21340609.
If you add them up, you will get the total of 21,341,108. Now subtract 21,340,609 to get 499,583