20518998

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{79531}}^1$

素因数の和:79579

約数の個数: 16

約数和(自身を含む): 41992896

約数和(自身を除く): 21473898

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 79531, 159062, 238593, 477186, 3419833, 6839666, 10259499, 20518998]

約数ペア:

[(1, 20518998), (2, 10259499), (3, 6839666), (6, 3419833), (43, 477186), (86, 238593), (129, 159062), (258, 79531)]