20675011

素因数分解:

$7^4\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:216

約数の個数: 20

約数和(自身を含む): 24648800

約数和(自身を除く): 3973789

約数列:

[1, 7, 49, 79, 109, 343, 553, 763, 2401, 3871, 5341, 8611, 27097, 37387, 60277, 189679, 261709, 421939, 2953573, 20675011]

約数ペア:

[(1, 20675011), (7, 2953573), (49, 421939), (79, 261709), (109, 189679), (343, 60277), (553, 37387), (763, 27097), (2401, 8611), (3871, 5341)]