Q: What is the sum of all factors of the number 221,101,209 excluding 221,101,209?
A: 143,891,367
The factors of the number 221,101,209 are: 1, 3, 7, 9, 21, 63, 3509543, 10528629, 24566801, 31585887, 73700403, 221101209.
If you add them up, you will get the total of 221,101,352. Now subtract 221,101,209 to get 143,891,367