21599864

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1$

素因数の和:348

約数の個数: 64

約数和(自身を含む): 48384000

約数和(自身を除く): 26784136

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 79, 88, 104, 143, 158, 239, 286, 316, 478, 572, 632, 869, 956, 1027, 1144, 1738, 1912, 2054, 2629, 3107, 3476, 4108, 5258, 6214, 6952, 8216, 10516, 11297, 12428, 18881, 21032, 22594, 24856, 34177, 37762, 45188, 68354, 75524, 90376, 136708, 151048, 207691, 245453, 273416, 415382, 490906, 830764, 981812, 1661528, 1963624, 2699983, 5399966, 10799932, 21599864]

約数ペア:

[(1, 21599864), (2, 10799932), (4, 5399966), (8, 2699983), (11, 1963624), (13, 1661528), (22, 981812), (26, 830764), (44, 490906), (52, 415382), (79, 273416), (88, 245453), (104, 207691), (143, 151048), (158, 136708), (239, 90376), (286, 75524), (316, 68354), (478, 45188), (572, 37762), (632, 34177), (869, 24856), (956, 22594), (1027, 21032), (1144, 18881), (1738, 12428), (1912, 11297), (2054, 10516), (2629, 8216), (3107, 6952), (3476, 6214), (4108, 5258)]