21420804976

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{733}}^1\times {\mathrm{38861}}^1$

素因数の和:39649

約数の個数: 40

約数和(自身を含む): 42444765504

約数和(自身を除く): 21023960528

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 733, 752, 1466, 2932, 5864, 11728, 34451, 38861, 68902, 77722, 137804, 155444, 275608, 310888, 551216, 621776, 1826467, 3652934, 7305868, 14611736, 28485113, 29223472, 56970226, 113940452, 227880904, 455761808, 1338800311, 2677600622, 5355201244, 10710402488, 21420804976]

約数ペア:

[(1, 21420804976), (2, 10710402488), (4, 5355201244), (8, 2677600622), (16, 1338800311), (47, 455761808), (94, 227880904), (188, 113940452), (376, 56970226), (733, 29223472), (752, 28485113), (1466, 14611736), (2932, 7305868), (5864, 3652934), (11728, 1826467), (34451, 621776), (38861, 551216), (68902, 310888), (77722, 275608), (137804, 155444)]