19709417

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{30941}}^1$

素因数の和:30968

約数の個数: 12

約数和(自身を含む): 24691716

約数和(自身を除く): 4982299

約数列:

[1, 7, 13, 49, 91, 637, 30941, 216587, 402233, 1516109, 2815631, 19709417]

約数ペア:

[(1, 19709417), (7, 2815631), (13, 1516109), (49, 402233), (91, 216587), (637, 30941)]