20997570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{63629}}^1$

素因数の和:63650

約数の個数: 32

約数和(自身を含む): 54976320

約数和(自身を除く): 33978750

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330, 63629, 127258, 190887, 318145, 381774, 636290, 699919, 954435, 1399838, 1908870, 2099757, 3499595, 4199514, 6999190, 10498785, 20997570]

約数ペア:

[(1, 20997570), (2, 10498785), (3, 6999190), (5, 4199514), (6, 3499595), (10, 2099757), (11, 1908870), (15, 1399838), (22, 954435), (30, 699919), (33, 636290), (55, 381774), (66, 318145), (110, 190887), (165, 127258), (330, 63629)]