Q: What is the sum of all factors of the number 28,715,521 excluding 28,715,521?
A: 21,551
The factors of the number 28,715,521 are: 1, 1427, 20123, 28715521.
If you add them up, you will get the total of 28,715,542. Now subtract 28,715,521 to get 21,551