20168967

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{5683}}^1$

素因数の和:5719

約数の個数: 24

約数和(自身を含む): 33285504

約数和(自身を除く): 13116537

約数列:

[1, 3, 7, 13, 21, 39, 91, 169, 273, 507, 1183, 3549, 5683, 17049, 39781, 73879, 119343, 221637, 517153, 960427, 1551459, 2881281, 6722989, 20168967]

約数ペア:

[(1, 20168967), (3, 6722989), (7, 2881281), (13, 1551459), (21, 960427), (39, 517153), (91, 221637), (169, 119343), (273, 73879), (507, 39781), (1183, 17049), (3549, 5683)]