17988021

素因数分解:

$3^3\times {\mathrm{173}}^1\times {\mathrm{3851}}^1$

素因数の和:4033

約数の個数: 16

約数和(自身を含む): 26809920

約数和(自身を除く): 8821899

約数列:

[1, 3, 9, 27, 173, 519, 1557, 3851, 4671, 11553, 34659, 103977, 666223, 1998669, 5996007, 17988021]

約数ペア:

[(1, 17988021), (3, 5996007), (9, 1998669), (27, 666223), (173, 103977), (519, 34659), (1557, 11553), (3851, 4671)]