Q: What is the sum of all factors of the number 666,521,213 excluding 666,521,213?
A: 2,655,715
The factors of the number 666,521,213 are: 1, 251, 2655463, 666521213.
If you add them up, you will get the total of 666,521,215. Now subtract 666,521,213 to get 2,655,715