28420874

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1\times {\mathrm{859}}^1$

素因数の和:1165

約数の個数: 16

約数和(自身を含む): 43467840

約数和(自身を除く): 15046966

約数列:

[1, 2, 71, 142, 233, 466, 859, 1718, 16543, 33086, 60989, 121978, 200147, 400294, 14210437, 28420874]

約数ペア:

[(1, 28420874), (2, 14210437), (71, 400294), (142, 200147), (233, 121978), (466, 60989), (859, 33086), (1718, 16543)]