Q: What is the sum of all factors of the number 20,643,521 excluding 20,643,521?
A: 617,023
The factors of the number 20,643,521 are: 1, 37, 563, 991, 20831, 36667, 557933, 20643521.
If you add them up, you will get the total of 20,644,138. Now subtract 20,643,521 to get 617,023