18909501

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{6829}}^1$

素因数の和:6916

約数の個数: 16

約数和(自身を含む): 27538560

約数和(自身を除く): 8629059

約数列:

[1, 3, 13, 39, 71, 213, 923, 2769, 6829, 20487, 88777, 266331, 484859, 1454577, 6303167, 18909501]

約数ペア:

[(1, 18909501), (3, 6303167), (13, 1454577), (39, 484859), (71, 266331), (213, 88777), (923, 20487), (2769, 6829)]