21365877

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{3361}}^1$

素因数の和:3540

約数の個数: 16

約数和(自身を含む): 30876608

約数和(自身を除く): 9510731

約数列:

[1, 3, 13, 39, 163, 489, 2119, 3361, 6357, 10083, 43693, 131079, 547843, 1643529, 7121959, 21365877]

約数ペア:

[(1, 21365877), (3, 7121959), (13, 1643529), (39, 547843), (163, 131079), (489, 43693), (2119, 10083), (3361, 6357)]