Q: What is the sum of all factors of the number 1,661,121 excluding 1,661,121?
A: 1,656,639
The factors of the number 1,661,121 are: 1, 3, 7, 9, 11, 17, 21, 27, 33, 47, 51, 63, 77, 99, 119, 141, 153, 187, 189, 231, 297, 329, 357, 423, 459, 517, 561, 693, 799, 987, 1071, 1269, 1309, 1551, 1683, 2079, 2397, 2961, 3213, 3619, 3927, 4653, 5049, 5593, 7191, 8789, 8883, 10857, 11781, 13959, 16779, 21573, 26367, 32571, 35343, 50337, 61523, 79101, 97713, 151011, 184569, 237303, 553707, 1661121.
If you add them up, you will get the total of 1,661,122. Now subtract 1,661,121 to get 1,656,639