20901837

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{21841}}^1$

素因数の和:21884

約数の個数: 16

約数和(自身を含む): 31452480

約数和(自身を除く): 10550643

約数列:

[1, 3, 11, 29, 33, 87, 319, 957, 21841, 65523, 240251, 633389, 720753, 1900167, 6967279, 20901837]

約数ペア:

[(1, 20901837), (3, 6967279), (11, 1900167), (29, 720753), (33, 633389), (87, 240251), (319, 65523), (957, 21841)]