21325238

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{4871}}^1$

素因数の和:5083

約数の個数: 16

約数和(自身を含む): 35078400

約数和(自身を除く): 13753162

約数列:

[1, 2, 11, 22, 199, 398, 2189, 4378, 4871, 9742, 53581, 107162, 969329, 1938658, 10662619, 21325238]

約数ペア:

[(1, 21325238), (2, 10662619), (11, 1938658), (22, 969329), (199, 107162), (398, 53581), (2189, 9742), (4378, 4871)]