16639915

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{2467}}^1$

素因数の和:2562

約数の個数: 16

約数和(自身を含む): 21323520

約数和(自身を除く): 4683605

約数列:

[1, 5, 19, 71, 95, 355, 1349, 2467, 6745, 12335, 46873, 175157, 234365, 875785, 3327983, 16639915]

約数ペア:

[(1, 16639915), (5, 3327983), (19, 875785), (71, 234365), (95, 175157), (355, 46873), (1349, 12335), (2467, 6745)]