Q: What is the sum of all factors of the number 21,521,657 excluding 21,521,657?
A: 1,115,143
The factors of the number 21,521,657 are: 1, 31, 53, 1643, 13099, 406069, 694247, 21521657.
If you add them up, you will get the total of 21,521,658. Now subtract 21,521,657 to get 1,115,143