20519187

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{30949}}^1$

素因数の和:30982

約数の個数: 16

約数和(自身を含む): 31197600

約数和(自身を除く): 10678413

約数列:

[1, 3, 13, 17, 39, 51, 221, 663, 30949, 92847, 402337, 526133, 1207011, 1578399, 6839729, 20519187]

約数ペア:

[(1, 20519187), (3, 6839729), (13, 1578399), (17, 1207011), (39, 526133), (51, 402337), (221, 92847), (663, 30949)]