21403818

素因数分解:

$2^1\times 3^3\times {\mathrm{127}}^1\times {\mathrm{3121}}^1$

素因数の和:3259

約数の個数: 32

約数和(自身を含む): 47953920

約数和(自身を除く): 26550102

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 127, 254, 381, 762, 1143, 2286, 3121, 3429, 6242, 6858, 9363, 18726, 28089, 56178, 84267, 168534, 396367, 792734, 1189101, 2378202, 3567303, 7134606, 10701909, 21403818]

約数ペア:

[(1, 21403818), (2, 10701909), (3, 7134606), (6, 3567303), (9, 2378202), (18, 1189101), (27, 792734), (54, 396367), (127, 168534), (254, 84267), (381, 56178), (762, 28089), (1143, 18726), (2286, 9363), (3121, 6858), (3429, 6242)]