Q: What is the sum of all factors of the number 20,400,407 excluding 20,400,407?
A: 258,313
The factors of the number 20,400,407 are: 1, 79, 258233, 20400407.
If you add them up, you will get the total of 20,400,665. Now subtract 20,400,407 to get 258,313