20491233

素因数分解:

$3^1\times 7^1\times {\mathrm{757}}^1\times {\mathrm{1289}}^1$

素因数の和:2056

約数の個数: 16

約数和(自身を含む): 31290240

約数和(自身を除く): 10799007

約数列:

[1, 3, 7, 21, 757, 1289, 2271, 3867, 5299, 9023, 15897, 27069, 975773, 2927319, 6830411, 20491233]

約数ペア:

[(1, 20491233), (3, 6830411), (7, 2927319), (21, 975773), (757, 27069), (1289, 15897), (2271, 9023), (3867, 5299)]