20185389

素因数分解:

$3^3\times 7^1\times {\mathrm{106801}}^1$

素因数の和:106817

約数の個数: 16

約数和(自身を含む): 34176640

約数和(自身を除く): 13991251

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 106801, 320403, 747607, 961209, 2242821, 2883627, 6728463, 20185389]

約数ペア:

[(1, 20185389), (3, 6728463), (7, 2883627), (9, 2242821), (21, 961209), (27, 747607), (63, 320403), (189, 106801)]