19764017

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{4621}}^1$

素因数の和:4688

約数の個数: 16

約数和(自身を含む): 24847872

約数和(自身を除く): 5083855

約数列:

[1, 7, 13, 47, 91, 329, 611, 4277, 4621, 32347, 60073, 217187, 420511, 1520309, 2823431, 19764017]

約数ペア:

[(1, 19764017), (7, 2823431), (13, 1520309), (47, 420511), (91, 217187), (329, 60073), (611, 32347), (4277, 4621)]