19203885

素因数分解:

$3^4\times 5^1\times {\mathrm{47417}}^1$

素因数の和:47434

約数の個数: 20

約数和(自身を含む): 34425468

約数和(自身を除く): 15221583

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 47417, 142251, 237085, 426753, 711255, 1280259, 2133765, 3840777, 6401295, 19203885]

約数ペア:

[(1, 19203885), (3, 6401295), (5, 3840777), (9, 2133765), (15, 1280259), (27, 711255), (45, 426753), (81, 237085), (135, 142251), (405, 47417)]