8209019

素因数分解:

$7^4\times {\mathrm{13}}^1\times {\mathrm{263}}^1$

素因数の和:304

約数の個数: 20

約数和(自身を含む): 10352496

約数和(自身を除く): 2143477

約数列:

[1, 7, 13, 49, 91, 263, 343, 637, 1841, 2401, 3419, 4459, 12887, 23933, 31213, 90209, 167531, 631463, 1172717, 8209019]

約数ペア:

[(1, 8209019), (7, 1172717), (13, 631463), (49, 167531), (91, 90209), (263, 31213), (343, 23933), (637, 12887), (1841, 4459), (2401, 3419)]