20643966

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{163841}}^1$

素因数の和:163856

約数の個数: 24

約数和(自身を含む): 51118704

約数和(自身を除く): 30474738

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 163841, 327682, 491523, 983046, 1146887, 1474569, 2293774, 2949138, 3440661, 6881322, 10321983, 20643966]

約数ペア:

[(1, 20643966), (2, 10321983), (3, 6881322), (6, 3440661), (7, 2949138), (9, 2293774), (14, 1474569), (18, 1146887), (21, 983046), (42, 491523), (63, 327682), (126, 163841)]