18810009

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{24023}}^1$

素因数の和:24061

約数の個数: 16

約数和(自身を含む): 28828800

約数和(自身を除く): 10018791

約数列:

[1, 3, 9, 27, 29, 87, 261, 783, 24023, 72069, 216207, 648621, 696667, 2090001, 6270003, 18810009]

約数ペア:

[(1, 18810009), (3, 6270003), (9, 2090001), (27, 696667), (29, 648621), (87, 216207), (261, 72069), (783, 24023)]