20804886

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{479}}^1$

素因数の和:633

約数の個数: 48

約数和(自身を含む): 47923200

約数和(自身を除く): 27118314

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 127, 171, 254, 342, 381, 479, 762, 958, 1143, 1437, 2286, 2413, 2874, 4311, 4826, 7239, 8622, 9101, 14478, 18202, 21717, 27303, 43434, 54606, 60833, 81909, 121666, 163818, 182499, 364998, 547497, 1094994, 1155827, 2311654, 3467481, 6934962, 10402443, 20804886]

約数ペア:

[(1, 20804886), (2, 10402443), (3, 6934962), (6, 3467481), (9, 2311654), (18, 1155827), (19, 1094994), (38, 547497), (57, 364998), (114, 182499), (127, 163818), (171, 121666), (254, 81909), (342, 60833), (381, 54606), (479, 43434), (762, 27303), (958, 21717), (1143, 18202), (1437, 14478), (2286, 9101), (2413, 8622), (2874, 7239), (4311, 4826)]