21051156

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{3433}}^1$

素因数の和:3520

約数の個数: 48

約数和(自身を含む): 56921984

約数和(自身を除く): 35870828

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 73, 84, 146, 219, 292, 438, 511, 876, 1022, 1533, 2044, 3066, 3433, 6132, 6866, 10299, 13732, 20598, 24031, 41196, 48062, 72093, 96124, 144186, 250609, 288372, 501218, 751827, 1002436, 1503654, 1754263, 3007308, 3508526, 5262789, 7017052, 10525578, 21051156]

約数ペア:

[(1, 21051156), (2, 10525578), (3, 7017052), (4, 5262789), (6, 3508526), (7, 3007308), (12, 1754263), (14, 1503654), (21, 1002436), (28, 751827), (42, 501218), (73, 288372), (84, 250609), (146, 144186), (219, 96124), (292, 72093), (438, 48062), (511, 41196), (876, 24031), (1022, 20598), (1533, 13732), (2044, 10299), (3066, 6866), (3433, 6132)]