20985183

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{26801}}^1$

素因数の和:26839

約数の個数: 16

約数和(自身を含む): 32162400

約数和(自身を除く): 11177217

約数列:

[1, 3, 9, 27, 29, 87, 261, 783, 26801, 80403, 241209, 723627, 777229, 2331687, 6995061, 20985183]

約数ペア:

[(1, 20985183), (3, 6995061), (9, 2331687), (27, 777229), (29, 723627), (87, 241209), (261, 80403), (783, 26801)]