21987660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{366461}}^1$

素因数の和:366473

約数の個数: 24

約数和(自身を含む): 61565616

約数和(自身を除く): 39577956

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 366461, 732922, 1099383, 1465844, 1832305, 2198766, 3664610, 4397532, 5496915, 7329220, 10993830, 21987660]

約数ペア:

[(1, 21987660), (2, 10993830), (3, 7329220), (4, 5496915), (5, 4397532), (6, 3664610), (10, 2198766), (12, 1832305), (15, 1465844), (20, 1099383), (30, 732922), (60, 366461)]