21259601

素因数分解:

${\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{167}}^1$

素因数の和:412

約数の個数: 16

約数和(自身を含む): 23804928

約数和(自身を除く): 2545327

約数列:

[1, 11, 71, 163, 167, 781, 1793, 1837, 11573, 11857, 27221, 127303, 130427, 299431, 1932691, 21259601]

約数ペア:

[(1, 21259601), (11, 1932691), (71, 299431), (163, 130427), (167, 127303), (781, 27221), (1793, 11857), (1837, 11573)]