21896161

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{307}}^1\times {\mathrm{443}}^1$

素因数の和:780

約数の個数: 16

約数和(自身を含む): 26256384

約数和(自身を除く): 4360223

約数列:

[1, 7, 23, 161, 307, 443, 2149, 3101, 7061, 10189, 49427, 71323, 136001, 952007, 3128023, 21896161]

約数ペア:

[(1, 21896161), (7, 3128023), (23, 952007), (161, 136001), (307, 71323), (443, 49427), (2149, 10189), (3101, 7061)]