19728105

素因数分解:

$3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{113}}^2$

素因数の和:337

約数の個数: 24

約数和(自身を含む): 32155968

約数和(自身を除く): 12427863

約数列:

[1, 3, 5, 15, 103, 113, 309, 339, 515, 565, 1545, 1695, 11639, 12769, 34917, 38307, 58195, 63845, 174585, 191535, 1315207, 3945621, 6576035, 19728105]

約数ペア:

[(1, 19728105), (3, 6576035), (5, 3945621), (15, 1315207), (103, 191535), (113, 174585), (309, 63845), (339, 58195), (515, 38307), (565, 34917), (1545, 12769), (1695, 11639)]