Q: What is the sum of all factors of the number 21,091,531 excluding 21,091,531?
A: 13,821
The factors of the number 21,091,531 are: 1, 1747, 12073, 21091531.
If you add them up, you will get the total of 21,091,544. Now subtract 21,091,531 to get 13,821