18156987

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{23189}}^1$

素因数の和:23227

約数の個数: 16

約数和(自身を含む): 27828000

約数和(自身を除く): 9671013

約数列:

[1, 3, 9, 27, 29, 87, 261, 783, 23189, 69567, 208701, 626103, 672481, 2017443, 6052329, 18156987]

約数ペア:

[(1, 18156987), (3, 6052329), (9, 2017443), (27, 672481), (29, 626103), (87, 208701), (261, 69567), (783, 23189)]