20777379

素因数分解:

$3^1\times 7^1\times {\mathrm{757}}^1\times {\mathrm{1307}}^1$

素因数の和:2074

約数の個数: 16

約数和(自身を含む): 31726848

約数和(自身を除く): 10949469

約数列:

[1, 3, 7, 21, 757, 1307, 2271, 3921, 5299, 9149, 15897, 27447, 989399, 2968197, 6925793, 20777379]

約数ペア:

[(1, 20777379), (3, 6925793), (7, 2968197), (21, 989399), (757, 27447), (1307, 15897), (2271, 9149), (3921, 5299)]