20825982

素因数分解:

$2^1\times 3^2\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{239}}^1$

素因数の和:397

約数の個数: 48

約数和(自身を含む): 46725120

約数和(自身を除く): 25899138

約数列:

[1, 2, 3, 6, 9, 18, 47, 94, 103, 141, 206, 239, 282, 309, 423, 478, 618, 717, 846, 927, 1434, 1854, 2151, 4302, 4841, 9682, 11233, 14523, 22466, 24617, 29046, 33699, 43569, 49234, 67398, 73851, 87138, 101097, 147702, 202194, 221553, 443106, 1156999, 2313998, 3470997, 6941994, 10412991, 20825982]

約数ペア:

[(1, 20825982), (2, 10412991), (3, 6941994), (6, 3470997), (9, 2313998), (18, 1156999), (47, 443106), (94, 221553), (103, 202194), (141, 147702), (206, 101097), (239, 87138), (282, 73851), (309, 67398), (423, 49234), (478, 43569), (618, 33699), (717, 29046), (846, 24617), (927, 22466), (1434, 14523), (1854, 11233), (2151, 9682), (4302, 4841)]