Q: What is the sum of all factors of the number 420,711,561 excluding 420,711,561?
A: 219,714,615
The factors of the number 420,711,561 are: 1, 3, 9, 23, 69, 101, 207, 303, 909, 2323, 6969, 20123, 20907, 60369, 181107, 462829, 1388487, 2032423, 4165461, 6097269, 18291807, 46745729, 140237187, 420711561.
If you add them up, you will get the total of 420,711,780. Now subtract 420,711,561 to get 219,714,615