Q: What is the sum of all factors of the number 1,221,255 excluding 1,221,255?
A: 1,198,617
The factors of the number 1,221,255 are: 1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 3877, 11631, 19385, 27139, 34893, 58155, 81417, 135695, 174465, 244251, 407085, 1221255.
If you add them up, you will get the total of 1,221,256. Now subtract 1,221,255 to get 1,198,617