21278517420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{167521}}^1$

素因数の和:167635

約数の個数: 96

約数和(自身を含む): 62479005120

約数和(自身を除く): 41200487700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 73, 87, 116, 145, 146, 174, 219, 290, 292, 348, 365, 435, 438, 580, 730, 870, 876, 1095, 1460, 1740, 2117, 2190, 4234, 4380, 6351, 8468, 10585, 12702, 21170, 25404, 31755, 42340, 63510, 127020, 167521, 335042, 502563, 670084, 837605, 1005126, 1675210, 2010252, 2512815, 3350420, 4858109, 5025630, 9716218, 10051260, 12229033, 14574327, 19432436, 24290545, 24458066, 29148654, 36687099, 48581090, 48916132, 58297308, 61145165, 72871635, 73374198, 97162180, 122290330, 145743270, 146748396, 183435495, 244580660, 291486540, 354641957, 366870990, 709283914, 733741980, 1063925871, 1418567828, 1773209785, 2127851742, 3546419570, 4255703484, 5319629355, 7092839140, 10639258710, 21278517420]

約数ペア:

[(1, 21278517420), (2, 10639258710), (3, 7092839140), (4, 5319629355), (5, 4255703484), (6, 3546419570), (10, 2127851742), (12, 1773209785), (15, 1418567828), (20, 1063925871), (29, 733741980), (30, 709283914), (58, 366870990), (60, 354641957), (73, 291486540), (87, 244580660), (116, 183435495), (145, 146748396), (146, 145743270), (174, 122290330), (219, 97162180), (290, 73374198), (292, 72871635), (348, 61145165), (365, 58297308), (435, 48916132), (438, 48581090), (580, 36687099), (730, 29148654), (870, 24458066), (876, 24290545), (1095, 19432436), (1460, 14574327), (1740, 12229033), (2117, 10051260), (2190, 9716218), (4234, 5025630), (4380, 4858109), (6351, 3350420), (8468, 2512815), (10585, 2010252), (12702, 1675210), (21170, 1005126), (25404, 837605), (31755, 670084), (42340, 502563), (63510, 335042), (127020, 167521)]