20991630

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{63611}}^1$

素因数の和:63632

約数の個数: 32

約数和(自身を含む): 54960768

約数和(自身を除く): 33969138

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330, 63611, 127222, 190833, 318055, 381666, 636110, 699721, 954165, 1399442, 1908330, 2099163, 3498605, 4198326, 6997210, 10495815, 20991630]

約数ペア:

[(1, 20991630), (2, 10495815), (3, 6997210), (5, 4198326), (6, 3498605), (10, 2099163), (11, 1908330), (15, 1399442), (22, 954165), (30, 699721), (33, 636110), (55, 381666), (66, 318055), (110, 190833), (165, 127222), (330, 63611)]