21054768

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{281}}^1$

素因数の和:522

約数の個数: 80

約数和(自身を含む): 62662656

約数和(自身を除く): 41607888

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 223, 281, 336, 446, 562, 669, 843, 892, 1124, 1338, 1561, 1686, 1784, 1967, 2248, 2676, 3122, 3372, 3568, 3934, 4496, 4683, 5352, 5901, 6244, 6744, 7868, 9366, 10704, 11802, 12488, 13488, 15736, 18732, 23604, 24976, 31472, 37464, 47208, 62663, 74928, 94416, 125326, 187989, 250652, 375978, 438641, 501304, 751956, 877282, 1002608, 1315923, 1503912, 1754564, 2631846, 3007824, 3509128, 5263692, 7018256, 10527384, 21054768]

約数ペア:

[(1, 21054768), (2, 10527384), (3, 7018256), (4, 5263692), (6, 3509128), (7, 3007824), (8, 2631846), (12, 1754564), (14, 1503912), (16, 1315923), (21, 1002608), (24, 877282), (28, 751956), (42, 501304), (48, 438641), (56, 375978), (84, 250652), (112, 187989), (168, 125326), (223, 94416), (281, 74928), (336, 62663), (446, 47208), (562, 37464), (669, 31472), (843, 24976), (892, 23604), (1124, 18732), (1338, 15736), (1561, 13488), (1686, 12488), (1784, 11802), (1967, 10704), (2248, 9366), (2676, 7868), (3122, 6744), (3372, 6244), (3568, 5901), (3934, 5352), (4496, 4683)]