67680781

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{5113}}^1$

素因数の和:5212

約数の個数: 16

約数和(自身を含む): 81169408

約数和(自身を除く): 13488627

約数列:

[1, 7, 31, 61, 217, 427, 1891, 5113, 13237, 35791, 158503, 311893, 1109521, 2183251, 9668683, 67680781]

約数ペア:

[(1, 67680781), (7, 9668683), (31, 2183251), (61, 1109521), (217, 311893), (427, 158503), (1891, 35791), (5113, 13237)]