20651169

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89399}}^1$

素因数の和:89420

約数の個数: 16

約数和(自身を含む): 34329600

約数和(自身を除く): 13678431

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 89399, 268197, 625793, 983389, 1877379, 2950167, 6883723, 20651169]

約数ペア:

[(1, 20651169), (3, 6883723), (7, 2950167), (11, 1877379), (21, 983389), (33, 625793), (77, 268197), (231, 89399)]