858009105

素因数分解:

$3^4\times 5^1\times {\mathrm{2118541}}^1$

素因数の和:2118558

約数の個数: 20

約数和(自身を含む): 1538061492

約数和(自身を除く): 680052387

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 2118541, 6355623, 10592705, 19066869, 31778115, 57200607, 95334345, 171601821, 286003035, 858009105]

約数ペア:

[(1, 858009105), (3, 286003035), (5, 171601821), (9, 95334345), (15, 57200607), (27, 31778115), (45, 19066869), (81, 10592705), (135, 6355623), (405, 2118541)]