Q: What is the sum of all factors of the number 1,220,421 excluding 1,220,421?
A: 406,811
The factors of the number 1,220,421 are: 1, 3, 406807, 1220421.
If you add them up, you will get the total of 1,220,827. Now subtract 1,220,421 to get 406,811