18779979

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{1901}}^1$

素因数の和:2030

約数の個数: 16

約数和(自身を含む): 26019360

約数和(自身を除く): 7239381

約数列:

[1, 3, 37, 89, 111, 267, 1901, 3293, 5703, 9879, 70337, 169189, 211011, 507567, 6259993, 18779979]

約数ペア:

[(1, 18779979), (3, 6259993), (37, 507567), (89, 211011), (111, 169189), (267, 70337), (1901, 9879), (3293, 5703)]