Q: What is the sum of all factors of the number 20,400,405 excluding 20,400,405?
A: 12,240,267
The factors of the number 20,400,405 are: 1, 3, 5, 15, 1360027, 4080081, 6800135, 20400405.
If you add them up, you will get the total of 20,400,417. Now subtract 20,400,405 to get 12,240,267