20685308

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{23831}}^1$

素因数の和:23873

約数の個数: 24

約数和(自身を含む): 42706944

約数和(自身を除く): 22021636

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 23831, 47662, 95324, 166817, 333634, 667268, 738761, 1477522, 2955044, 5171327, 10342654, 20685308]

約数ペア:

[(1, 20685308), (2, 10342654), (4, 5171327), (7, 2955044), (14, 1477522), (28, 738761), (31, 667268), (62, 333634), (124, 166817), (217, 95324), (434, 47662), (868, 23831)]