20543379

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{977}}^1$

素因数の和:1186

約数の個数: 16

約数和(自身を含む): 28228992

約数和(自身を除く): 7685613

約数列:

[1, 3, 43, 129, 163, 489, 977, 2931, 7009, 21027, 42011, 126033, 159251, 477753, 6847793, 20543379]

約数ペア:

[(1, 20543379), (3, 6847793), (43, 477753), (129, 159251), (163, 126033), (489, 42011), (977, 21027), (2931, 7009)]