21325359

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{4933}}^1$

素因数の和:5078

約数の個数: 16

約数和(自身を含む): 31261824

約数和(自身を除く): 9936465

約数列:

[1, 3, 11, 33, 131, 393, 1441, 4323, 4933, 14799, 54263, 162789, 646223, 1938669, 7108453, 21325359]

約数ペア:

[(1, 21325359), (3, 7108453), (11, 1938669), (33, 646223), (131, 162789), (393, 54263), (1441, 14799), (4323, 4933)]