Q: What is the sum of all factors of the number 666,521,209 excluding 666,521,209?
A: 28,979,207
The factors of the number 666,521,209 are: 1, 23, 28979183, 666521209.
If you add them up, you will get the total of 666,521,237. Now subtract 666,521,209 to get 28,979,207