18804569

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1\times {\mathrm{449}}^1$

素因数の和:680

約数の個数: 16

約数和(自身を含む): 22348800

約数和(自身を除く): 3544231

約数列:

[1, 7, 31, 193, 217, 449, 1351, 3143, 5983, 13919, 41881, 86657, 97433, 606599, 2686367, 18804569]

約数ペア:

[(1, 18804569), (7, 2686367), (31, 606599), (193, 97433), (217, 86657), (449, 41881), (1351, 13919), (3143, 5983)]