Q: What is the sum of all factors of the number 12,400,021 excluding 12,400,021?
A: 729,431
The factors of the number 12,400,021 are: 1, 17, 729413, 12400021.
If you add them up, you will get the total of 12,400,750. Now subtract 12,400,021 to get 729,431