31123202

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{7109}}^1$

素因数の和:7321

約数の個数: 16

約数和(自身を含む): 51192000

約数和(自身を除く): 20068798

約数列:

[1, 2, 11, 22, 199, 398, 2189, 4378, 7109, 14218, 78199, 156398, 1414691, 2829382, 15561601, 31123202]

約数ペア:

[(1, 31123202), (2, 15561601), (11, 2829382), (22, 1414691), (199, 156398), (398, 78199), (2189, 14218), (4378, 7109)]