21253392

素因数分解:

$2^4\times 3^2\times {\mathrm{37}}^1\times {\mathrm{3989}}^1$

素因数の和:4040

約数の個数: 60

約数和(自身を含む): 61102860

約数和(自身を除く): 39849468

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 37, 48, 72, 74, 111, 144, 148, 222, 296, 333, 444, 592, 666, 888, 1332, 1776, 2664, 3989, 5328, 7978, 11967, 15956, 23934, 31912, 35901, 47868, 63824, 71802, 95736, 143604, 147593, 191472, 287208, 295186, 442779, 574416, 590372, 885558, 1180744, 1328337, 1771116, 2361488, 2656674, 3542232, 5313348, 7084464, 10626696, 21253392]

約数ペア:

[(1, 21253392), (2, 10626696), (3, 7084464), (4, 5313348), (6, 3542232), (8, 2656674), (9, 2361488), (12, 1771116), (16, 1328337), (18, 1180744), (24, 885558), (36, 590372), (37, 574416), (48, 442779), (72, 295186), (74, 287208), (111, 191472), (144, 147593), (148, 143604), (222, 95736), (296, 71802), (333, 63824), (444, 47868), (592, 35901), (666, 31912), (888, 23934), (1332, 15956), (1776, 11967), (2664, 7978), (3989, 5328)]