Q: What is the sum of all factors of the number 1,220,121 excluding 1,220,121?
A: 824,103
The factors of the number 1,220,121 are: 1, 3, 7, 9, 21, 63, 107, 181, 321, 543, 749, 963, 1267, 1629, 2247, 3801, 6741, 11403, 19367, 58101, 135569, 174303, 406707, 1220121.
If you add them up, you will get the total of 1,220,945. Now subtract 1,220,121 to get 824,103