20431774

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{271}}^1$

素因数の和:456

約数の個数: 32

約数和(自身を含む): 35251200

約数和(自身を除く): 14819426

約数列:

[1, 2, 11, 22, 23, 46, 149, 253, 271, 298, 506, 542, 1639, 2981, 3278, 3427, 5962, 6233, 6854, 12466, 37697, 40379, 68563, 75394, 80758, 137126, 444169, 888338, 928717, 1857434, 10215887, 20431774]

約数ペア:

[(1, 20431774), (2, 10215887), (11, 1857434), (22, 928717), (23, 888338), (46, 444169), (149, 137126), (253, 80758), (271, 75394), (298, 68563), (506, 40379), (542, 37697), (1639, 12466), (2981, 6854), (3278, 6233), (3427, 5962)]