1688897391

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{281}}^1\times {\mathrm{64627}}^1$

素因数の和:64942

約数の個数: 16

約数和(自身を含む): 2332812288

約数和(自身を除く): 643914897

約数列:

[1, 3, 31, 93, 281, 843, 8711, 26133, 64627, 193881, 2003437, 6010311, 18160187, 54480561, 562965797, 1688897391]

約数ペア:

[(1, 1688897391), (3, 562965797), (31, 54480561), (93, 18160187), (281, 6010311), (843, 2003437), (8711, 193881), (26133, 64627)]