21657526

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1\times {\mathrm{1531}}^1$

素因数の和:2187

約数の個数: 16

約数和(自身を含む): 35517888

約数和(自身を除く): 13860362

約数列:

[1, 2, 11, 22, 643, 1286, 1531, 3062, 7073, 14146, 16841, 33682, 984433, 1968866, 10828763, 21657526]

約数ペア:

[(1, 21657526), (2, 10828763), (11, 1968866), (22, 984433), (643, 33682), (1286, 16841), (1531, 14146), (3062, 7073)]