Q: What is the sum of all factors of the number 1,378,809 excluding 1,378,809?
A: 681,991
The factors of the number 1,378,809 are: 1, 3, 9, 27, 223, 229, 669, 687, 2007, 2061, 6021, 6183, 51067, 153201, 459603, 1378809.
If you add them up, you will get the total of 1,379,490. Now subtract 1,378,809 to get 681,991