Q: What is the sum of all factors of the number 13,387,878 excluding 13,387,878?
A: 21,237,570
The factors of the number 13,387,878 are: 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 43, 49, 63, 86, 98, 126, 129, 147, 258, 294, 301, 353, 387, 441, 602, 706, 774, 882, 903, 1059, 1806, 2107, 2118, 2471, 2709, 3177, 4214, 4942, 5418, 6321, 6354, 7413, 12642, 14826, 15179, 17297, 18963, 22239, 30358, 34594, 37926, 44478, 45537, 51891, 91074, 103782, 106253, 136611, 155673, 212506, 273222, 311346, 318759, 637518, 743771, 956277, 1487542, 1912554, 2231313, 4462626, 6693939, 13387878.
If you add them up, you will get the total of 13,387,899. Now subtract 13,387,878 to get 21,237,570