1218827519

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{4481}}^1$

素因数の和:4576

約数の個数: 32

約数和(自身を含む): 1556150400

約数和(自身を除く): 337322881

約数列:

[1, 7, 13, 49, 61, 91, 343, 427, 637, 793, 2989, 4459, 4481, 5551, 20923, 31367, 38857, 58253, 219569, 271999, 273341, 407771, 1536983, 1913387, 2854397, 3553433, 13393709, 19980779, 24874031, 93755963, 174118217, 1218827519]

約数ペア:

[(1, 1218827519), (7, 174118217), (13, 93755963), (49, 24874031), (61, 19980779), (91, 13393709), (343, 3553433), (427, 2854397), (637, 1913387), (793, 1536983), (2989, 407771), (4459, 273341), (4481, 271999), (5551, 219569), (20923, 58253), (31367, 38857)]