816885

素因数分解:

$3^4\times 5^1\times {\mathrm{2017}}^1$

素因数の和:2034

約数の個数: 20

約数和(自身を含む): 1465068

約数和(自身を除く): 648183

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 2017, 6051, 10085, 18153, 30255, 54459, 90765, 163377, 272295, 816885]

約数ペア:

[(1, 816885), (3, 272295), (5, 163377), (9, 90765), (15, 54459), (27, 30255), (45, 18153), (81, 10085), (135, 6051), (405, 2017)]