Q: What is the sum of all factors of the number 420,356,331 including 420,356,331?

A: 661,478,400

Why is 661,478,400 the sum of all factors of 420,356,331, including 420,356,331?

The factors of the number 420,356,331 are: 1, 3, 9, 17, 27, 51, 153, 359, 459, 1077, 2551, 3231, 6103, 7653, 9693, 18309, 22959, 43367, 54927, 68877, 130101, 164781, 390303, 915809, 1170909, 2747427, 8242281, 15568753, 24726843, 46706259, 140118777, 420356331.

If you add them up, you will get the total of 661,478,400.