21447480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{367}}^1\times {\mathrm{487}}^1$

素因数の和:868

約数の個数: 64

約数和(自身を含む): 64650240

約数和(自身を除く): 43202760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 367, 487, 734, 974, 1101, 1461, 1468, 1835, 1948, 2202, 2435, 2922, 2936, 3670, 3896, 4404, 4870, 5505, 5844, 7305, 7340, 8808, 9740, 11010, 11688, 14610, 14680, 19480, 22020, 29220, 44040, 58440, 178729, 357458, 536187, 714916, 893645, 1072374, 1429832, 1787290, 2144748, 2680935, 3574580, 4289496, 5361870, 7149160, 10723740, 21447480]

約数ペア:

[(1, 21447480), (2, 10723740), (3, 7149160), (4, 5361870), (5, 4289496), (6, 3574580), (8, 2680935), (10, 2144748), (12, 1787290), (15, 1429832), (20, 1072374), (24, 893645), (30, 714916), (40, 536187), (60, 357458), (120, 178729), (367, 58440), (487, 44040), (734, 29220), (974, 22020), (1101, 19480), (1461, 14680), (1468, 14610), (1835, 11688), (1948, 11010), (2202, 9740), (2435, 8808), (2922, 7340), (2936, 7305), (3670, 5844), (3896, 5505), (4404, 4870)]