Q: What is the sum of all factors of the number 21,400,013 excluding 21,400,013?
A: 690,355
The factors of the number 21,400,013 are: 1, 31, 690323, 21400013.
If you add them up, you will get the total of 21,400,703. Now subtract 21,400,013 to get 690,355