20418986

素因数分解:

$2^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{9059}}^1$

素因数の和:9098

約数の個数: 24

約数和(自身を含む): 37182240

約数和(自身を除く): 16763254

約数列:

[1, 2, 7, 14, 23, 46, 49, 98, 161, 322, 1127, 2254, 9059, 18118, 63413, 126826, 208357, 416714, 443891, 887782, 1458499, 2916998, 10209493, 20418986]

約数ペア:

[(1, 20418986), (2, 10209493), (7, 2916998), (14, 1458499), (23, 887782), (46, 443891), (49, 416714), (98, 208357), (161, 126826), (322, 63413), (1127, 18118), (2254, 9059)]