20406942

素因数分解:

$2^1\times 3^2\times {\mathrm{491}}^1\times {\mathrm{2309}}^1$

素因数の和:2808

約数の個数: 24

約数和(自身を含む): 44324280

約数和(自身を除く): 23917338

約数列:

[1, 2, 3, 6, 9, 18, 491, 982, 1473, 2309, 2946, 4419, 4618, 6927, 8838, 13854, 20781, 41562, 1133719, 2267438, 3401157, 6802314, 10203471, 20406942]

約数ペア:

[(1, 20406942), (2, 10203471), (3, 6802314), (6, 3401157), (9, 2267438), (18, 1133719), (491, 41562), (982, 20781), (1473, 13854), (2309, 8838), (2946, 6927), (4419, 4618)]