Q: What is the sum of all factors of the number 1,990,989 excluding 1,990,989?
A: 2,119,923
The factors of the number 1,990,989 are: 1, 3, 7, 9, 11, 13, 17, 21, 33, 39, 51, 63, 77, 91, 99, 117, 119, 143, 153, 169, 187, 221, 231, 273, 357, 429, 507, 561, 663, 693, 819, 1001, 1071, 1183, 1287, 1309, 1521, 1547, 1683, 1859, 1989, 2431, 2873, 3003, 3549, 3927, 4641, 5577, 7293, 8619, 9009, 10647, 11781, 13013, 13923, 16731, 17017, 20111, 21879, 25857, 31603, 39039, 51051, 60333, 94809, 117117, 153153, 180999, 221221, 284427, 663663, 1990989.
If you add them up, you will get the total of 1,990,991. Now subtract 1,990,989 to get 2,119,923