21754271

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{16619}}^1$

素因数の和:16654

約数の個数: 16

約数和(自身を含む): 28719360

約数和(自身を除く): 6965089

約数列:

[1, 7, 11, 17, 77, 119, 187, 1309, 16619, 116333, 182809, 282523, 1279663, 1977661, 3107753, 21754271]

約数ペア:

[(1, 21754271), (7, 3107753), (11, 1977661), (17, 1279663), (77, 282523), (119, 182809), (187, 116333), (1309, 16619)]