Q: What is the sum of all factors of the number 21,406,771 excluding 21,406,771?
A: 690,573
The factors of the number 21,406,771 are: 1, 31, 690541, 21406771.
If you add them up, you will get the total of 21,407,461. Now subtract 21,406,771 to get 690,573