21208710809

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{995387}}^1$

素因数の和:995560

約数の個数: 16

約数和(自身を含む): 25083777600

約数和(自身を除く): 3875066791

約数列:

[1, 11, 13, 143, 149, 1639, 1937, 21307, 995387, 10949257, 12940031, 142340341, 148312663, 1631439293, 1928064619, 21208710809]

約数ペア:

[(1, 21208710809), (11, 1928064619), (13, 1631439293), (143, 148312663), (149, 142340341), (1639, 12940031), (1937, 10949257), (21307, 995387)]