Q: What is the sum of all factors of the number 21,453,213 excluding 21,453,213?
A: 7,172,515
The factors of the number 21,453,213 are: 1, 3, 2503, 2857, 7509, 8571, 7151071, 21453213.
If you add them up, you will get the total of 21,453,220. Now subtract 21,453,213 to get 7,172,515