21398477

素因数分解:

${\mathrm{43}}^2\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:320

約数の個数: 12

約数和(自身を含む): 22352544

約数和(自身を除く): 954067

約数列:

[1, 43, 71, 163, 1849, 3053, 7009, 11573, 131279, 301387, 497639, 21398477]

約数ペア:

[(1, 21398477), (43, 497639), (71, 301387), (163, 131279), (1849, 11573), (3053, 7009)]