18905520478

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{6670967}}^1$

素因数の和:6671091

約数の個数: 16

約数和(自身を含む): 30819872160

約数和(自身を除く): 11914351682

約数列:

[1, 2, 13, 26, 109, 218, 1417, 2834, 6670967, 13341934, 86722571, 173445142, 727135403, 1454270806, 9452760239, 18905520478]

約数ペア:

[(1, 18905520478), (2, 9452760239), (13, 1454270806), (26, 727135403), (109, 173445142), (218, 86722571), (1417, 13341934), (2834, 6670967)]