20686915

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{3067}}^1$

素因数の和:3162

約数の個数: 16

約数和(自身を含む): 26507520

約数和(自身を除く): 5820605

約数列:

[1, 5, 19, 71, 95, 355, 1349, 3067, 6745, 15335, 58273, 217757, 291365, 1088785, 4137383, 20686915]

約数ペア:

[(1, 20686915), (5, 4137383), (19, 1088785), (71, 291365), (95, 217757), (355, 58273), (1349, 15335), (3067, 6745)]