8613945

素因数分解:

$3^4\times 5^1\times {\mathrm{21269}}^1$

素因数の和:21286

約数の個数: 20

約数和(自身を含む): 15442020

約数和(自身を除く): 6828075

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 21269, 63807, 106345, 191421, 319035, 574263, 957105, 1722789, 2871315, 8613945]

約数ペア:

[(1, 8613945), (3, 2871315), (5, 1722789), (9, 957105), (15, 574263), (27, 319035), (45, 191421), (81, 106345), (135, 63807), (405, 21269)]