21566124

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:279

約数の個数: 72

約数和(自身を含む): 56609280

約数和(自身を除く): 35043156

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 89, 106, 127, 159, 178, 212, 254, 267, 318, 356, 381, 477, 508, 534, 636, 762, 801, 954, 1068, 1143, 1524, 1602, 1908, 2286, 3204, 4572, 4717, 6731, 9434, 11303, 13462, 14151, 18868, 20193, 22606, 26924, 28302, 33909, 40386, 42453, 45212, 56604, 60579, 67818, 80772, 84906, 101727, 121158, 135636, 169812, 203454, 242316, 406908, 599059, 1198118, 1797177, 2396236, 3594354, 5391531, 7188708, 10783062, 21566124]

約数ペア:

[(1, 21566124), (2, 10783062), (3, 7188708), (4, 5391531), (6, 3594354), (9, 2396236), (12, 1797177), (18, 1198118), (36, 599059), (53, 406908), (89, 242316), (106, 203454), (127, 169812), (159, 135636), (178, 121158), (212, 101727), (254, 84906), (267, 80772), (318, 67818), (356, 60579), (381, 56604), (477, 45212), (508, 42453), (534, 40386), (636, 33909), (762, 28302), (801, 26924), (954, 22606), (1068, 20193), (1143, 18868), (1524, 14151), (1602, 13462), (1908, 11303), (2286, 9434), (3204, 6731), (4572, 4717)]