21745829

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{401}}^1$

素因数の和:596

約数の個数: 16

約数和(自身を含む): 25522176

約数和(自身を除く): 3776347

約数列:

[1, 7, 61, 127, 401, 427, 889, 2807, 7747, 24461, 50927, 54229, 171227, 356489, 3106547, 21745829]

約数ペア:

[(1, 21745829), (7, 3106547), (61, 356489), (127, 171227), (401, 54229), (427, 50927), (889, 24461), (2807, 7747)]