20516949

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{26203}}^1$

素因数の和:26241

約数の個数: 16

約数和(自身を含む): 31444800

約数和(自身を除く): 10927851

約数列:

[1, 3, 9, 27, 29, 87, 261, 783, 26203, 78609, 235827, 707481, 759887, 2279661, 6838983, 20516949]

約数ペア:

[(1, 20516949), (3, 6838983), (9, 2279661), (27, 759887), (29, 707481), (87, 235827), (261, 78609), (783, 26203)]