Q: What is the sum of all factors of the number 21,240,409 excluding 21,240,409?
A: 578,311
The factors of the number 21,240,409 are: 1, 43, 307, 1609, 13201, 69187, 493963, 21240409.
If you add them up, you will get the total of 21,240,987. Now subtract 21,240,409 to get 578,311