21544020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{119689}}^1$

素因数の和:119704

約数の個数: 36

約数和(自身を含む): 65350740

約数和(自身を除く): 43806720

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 119689, 239378, 359067, 478756, 598445, 718134, 1077201, 1196890, 1436268, 1795335, 2154402, 2393780, 3590670, 4308804, 5386005, 7181340, 10772010, 21544020]

約数ペア:

[(1, 21544020), (2, 10772010), (3, 7181340), (4, 5386005), (5, 4308804), (6, 3590670), (9, 2393780), (10, 2154402), (12, 1795335), (15, 1436268), (18, 1196890), (20, 1077201), (30, 718134), (36, 598445), (45, 478756), (60, 359067), (90, 239378), (180, 119689)]