21664872

素因数分解:

$2^3\times 3^2\times {\mathrm{239}}^1\times {\mathrm{1259}}^1$

素因数の和:1510

約数の個数: 48

約数和(自身を含む): 58968000

約数和(自身を除く): 37303128

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 239, 478, 717, 956, 1259, 1434, 1912, 2151, 2518, 2868, 3777, 4302, 5036, 5736, 7554, 8604, 10072, 11331, 15108, 17208, 22662, 30216, 45324, 90648, 300901, 601802, 902703, 1203604, 1805406, 2407208, 2708109, 3610812, 5416218, 7221624, 10832436, 21664872]

約数ペア:

[(1, 21664872), (2, 10832436), (3, 7221624), (4, 5416218), (6, 3610812), (8, 2708109), (9, 2407208), (12, 1805406), (18, 1203604), (24, 902703), (36, 601802), (72, 300901), (239, 90648), (478, 45324), (717, 30216), (956, 22662), (1259, 17208), (1434, 15108), (1912, 11331), (2151, 10072), (2518, 8604), (2868, 7554), (3777, 5736), (4302, 5036)]