21589161

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{307}}^1\times {\mathrm{2131}}^1$

素因数の和:2452

約数の個数: 16

約数和(自身を含む): 31519488

約数和(自身を除く): 9930327

約数列:

[1, 3, 11, 33, 307, 921, 2131, 3377, 6393, 10131, 23441, 70323, 654217, 1962651, 7196387, 21589161]

約数ペア:

[(1, 21589161), (3, 7196387), (11, 1962651), (33, 654217), (307, 70323), (921, 23441), (2131, 10131), (3377, 6393)]