20402228

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{9463}}^1$

素因数の和:9492

約数の個数: 36

約数和(自身を含む): 45313632

約数和(自身を除く): 24911404

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 1078, 2156, 9463, 18926, 37852, 66241, 104093, 132482, 208186, 264964, 416372, 463687, 728651, 927374, 1457302, 1854748, 2914604, 5100557, 10201114, 20402228]

約数ペア:

[(1, 20402228), (2, 10201114), (4, 5100557), (7, 2914604), (11, 1854748), (14, 1457302), (22, 927374), (28, 728651), (44, 463687), (49, 416372), (77, 264964), (98, 208186), (154, 132482), (196, 104093), (308, 66241), (539, 37852), (1078, 18926), (2156, 9463)]