20988187

素因数分解:

${\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1\times {\mathrm{269}}^1$

素因数の和:494

約数の個数: 16

約数和(自身を含む): 23677920

約数和(自身を除く): 2689733

約数列:

[1, 11, 41, 173, 269, 451, 1903, 2959, 7093, 11029, 46537, 78023, 121319, 511907, 1908017, 20988187]

約数ペア:

[(1, 20988187), (11, 1908017), (41, 511907), (173, 121319), (269, 78023), (451, 46537), (1903, 11029), (2959, 7093)]