20449665

素因数分解:

$3^5\times 5^1\times {\mathrm{16831}}^1$

素因数の和:16851

約数の個数: 24

約数和(自身を含む): 36761088

約数和(自身を除く): 16311423

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 16831, 50493, 84155, 151479, 252465, 454437, 757395, 1363311, 2272185, 4089933, 6816555, 20449665]

約数ペア:

[(1, 20449665), (3, 6816555), (5, 4089933), (9, 2272185), (15, 1363311), (27, 757395), (45, 454437), (81, 252465), (135, 151479), (243, 84155), (405, 50493), (1215, 16831)]