156621321

素因数分解:

$3^2\times {\mathrm{163}}^1\times {\mathrm{241}}^1\times {\mathrm{443}}^1$

素因数の和:853

約数の個数: 24

約数和(自身を含む): 229079136

約数和(自身を除く): 72457815

約数列:

[1, 3, 9, 163, 241, 443, 489, 723, 1329, 1467, 2169, 3987, 39283, 72209, 106763, 117849, 216627, 320289, 353547, 649881, 960867, 17402369, 52207107, 156621321]

約数ペア:

[(1, 156621321), (3, 52207107), (9, 17402369), (163, 960867), (241, 649881), (443, 353547), (489, 320289), (723, 216627), (1329, 117849), (1467, 106763), (2169, 72209), (3987, 39283)]