21656825

素因数分解:

$5^2\times {\mathrm{463}}^1\times {\mathrm{1871}}^1$

素因数の和:2344

約数の個数: 12

約数和(自身を含む): 26926848

約数和(自身を除く): 5270023

約数列:

[1, 5, 25, 463, 1871, 2315, 9355, 11575, 46775, 866273, 4331365, 21656825]

約数ペア:

[(1, 21656825), (5, 4331365), (25, 866273), (463, 46775), (1871, 11575), (2315, 9355)]