20418885

素因数分解:

$3^4\times 5^1\times {\mathrm{50417}}^1$

素因数の和:50434

約数の個数: 20

約数和(自身を含む): 36603468

約数和(自身を除く): 16184583

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 50417, 151251, 252085, 453753, 756255, 1361259, 2268765, 4083777, 6806295, 20418885]

約数ペア:

[(1, 20418885), (3, 6806295), (5, 4083777), (9, 2268765), (15, 1361259), (27, 756255), (45, 453753), (81, 252085), (135, 151251), (405, 50417)]