21261060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4073}}^1$

素因数の和:4117

約数の個数: 72

約数和(自身を含む): 66732120

約数和(自身を除く): 45471060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 435, 522, 580, 870, 1044, 1305, 1740, 2610, 4073, 5220, 8146, 12219, 16292, 20365, 24438, 36657, 40730, 48876, 61095, 73314, 81460, 118117, 122190, 146628, 183285, 236234, 244380, 354351, 366570, 472468, 590585, 708702, 733140, 1063053, 1181170, 1417404, 1771755, 2126106, 2362340, 3543510, 4252212, 5315265, 7087020, 10630530, 21261060]

約数ペア:

[(1, 21261060), (2, 10630530), (3, 7087020), (4, 5315265), (5, 4252212), (6, 3543510), (9, 2362340), (10, 2126106), (12, 1771755), (15, 1417404), (18, 1181170), (20, 1063053), (29, 733140), (30, 708702), (36, 590585), (45, 472468), (58, 366570), (60, 354351), (87, 244380), (90, 236234), (116, 183285), (145, 146628), (174, 122190), (180, 118117), (261, 81460), (290, 73314), (348, 61095), (435, 48876), (522, 40730), (580, 36657), (870, 24438), (1044, 20365), (1305, 16292), (1740, 12219), (2610, 8146), (4073, 5220)]