21459744

素因数分解:

$2^5\times 3^2\times {\mathrm{269}}^1\times {\mathrm{277}}^1$

素因数の和:562

約数の個数: 72

約数和(自身を含む): 61474140

約数和(自身を除く): 40014396

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 269, 277, 288, 538, 554, 807, 831, 1076, 1108, 1614, 1662, 2152, 2216, 2421, 2493, 3228, 3324, 4304, 4432, 4842, 4986, 6456, 6648, 8608, 8864, 9684, 9972, 12912, 13296, 19368, 19944, 25824, 26592, 38736, 39888, 74513, 77472, 79776, 149026, 223539, 298052, 447078, 596104, 670617, 894156, 1192208, 1341234, 1788312, 2384416, 2682468, 3576624, 5364936, 7153248, 10729872, 21459744]

約数ペア:

[(1, 21459744), (2, 10729872), (3, 7153248), (4, 5364936), (6, 3576624), (8, 2682468), (9, 2384416), (12, 1788312), (16, 1341234), (18, 1192208), (24, 894156), (32, 670617), (36, 596104), (48, 447078), (72, 298052), (96, 223539), (144, 149026), (269, 79776), (277, 77472), (288, 74513), (538, 39888), (554, 38736), (807, 26592), (831, 25824), (1076, 19944), (1108, 19368), (1614, 13296), (1662, 12912), (2152, 9972), (2216, 9684), (2421, 8864), (2493, 8608), (3228, 6648), (3324, 6456), (4304, 4986), (4432, 4842)]