Q: What is the sum of all factors of the number 420,401,331 excluding 420,401,331?
A: 303,247,413
The factors of the number 420,401,331 are: 1, 3, 7, 9, 21, 41, 49, 63, 123, 147, 287, 369, 441, 861, 2009, 2583, 6027, 18081, 23251, 69753, 162757, 209259, 488271, 953291, 1139299, 1464813, 2859873, 3417897, 6673037, 8579619, 10253691, 20019111, 46711259, 60057333, 140133777, 420401331.
If you add them up, you will get the total of 420,401,634. Now subtract 420,401,331 to get 303,247,413