20957486

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{4787}}^1$

素因数の和:4999

約数の個数: 16

約数和(自身を含む): 34473600

約数和(自身を除く): 13516114

約数列:

[1, 2, 11, 22, 199, 398, 2189, 4378, 4787, 9574, 52657, 105314, 952613, 1905226, 10478743, 20957486]

約数ペア:

[(1, 20957486), (2, 10478743), (11, 1905226), (22, 952613), (199, 105314), (398, 52657), (2189, 9574), (4378, 4787)]