21154572

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{881}}^1$

素因数の和:943

約数の個数: 72

約数和(自身を含む): 57788640

約数和(自身を除く): 36634068

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 29, 36, 46, 58, 69, 87, 92, 116, 138, 174, 207, 261, 276, 348, 414, 522, 667, 828, 881, 1044, 1334, 1762, 2001, 2643, 2668, 3524, 4002, 5286, 6003, 7929, 8004, 10572, 12006, 15858, 20263, 24012, 25549, 31716, 40526, 51098, 60789, 76647, 81052, 102196, 121578, 153294, 182367, 229941, 243156, 306588, 364734, 459882, 587627, 729468, 919764, 1175254, 1762881, 2350508, 3525762, 5288643, 7051524, 10577286, 21154572]

約数ペア:

[(1, 21154572), (2, 10577286), (3, 7051524), (4, 5288643), (6, 3525762), (9, 2350508), (12, 1762881), (18, 1175254), (23, 919764), (29, 729468), (36, 587627), (46, 459882), (58, 364734), (69, 306588), (87, 243156), (92, 229941), (116, 182367), (138, 153294), (174, 121578), (207, 102196), (261, 81052), (276, 76647), (348, 60789), (414, 51098), (522, 40526), (667, 31716), (828, 25549), (881, 24012), (1044, 20263), (1334, 15858), (1762, 12006), (2001, 10572), (2643, 8004), (2668, 7929), (3524, 6003), (4002, 5286)]