21714440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2903}}^1$

素因数の和:2942

約数の個数: 64

約数和(自身を含む): 56453760

約数和(自身を除く): 34739320

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 2903, 3740, 5806, 7480, 11612, 14515, 23224, 29030, 31933, 49351, 58060, 63866, 98702, 116120, 127732, 159665, 197404, 246755, 255464, 319330, 394808, 493510, 542861, 638660, 987020, 1085722, 1277320, 1974040, 2171444, 2714305, 4342888, 5428610, 10857220, 21714440]

約数ペア:

[(1, 21714440), (2, 10857220), (4, 5428610), (5, 4342888), (8, 2714305), (10, 2171444), (11, 1974040), (17, 1277320), (20, 1085722), (22, 987020), (34, 638660), (40, 542861), (44, 493510), (55, 394808), (68, 319330), (85, 255464), (88, 246755), (110, 197404), (136, 159665), (170, 127732), (187, 116120), (220, 98702), (340, 63866), (374, 58060), (440, 49351), (680, 31933), (748, 29030), (935, 23224), (1496, 14515), (1870, 11612), (2903, 7480), (3740, 5806)]