20371211

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{21881}}^1$

素因数の和:21914

約数の個数: 12

約数和(自身を含む): 24945480

約数和(自身を除く): 4574269

約数列:

[1, 7, 19, 49, 133, 931, 21881, 153167, 415739, 1072169, 2910173, 20371211]

約数ペア:

[(1, 20371211), (7, 2910173), (19, 1072169), (49, 415739), (133, 153167), (931, 21881)]