28278874

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{15319}}^1$

素因数の和:15405

約数の個数: 16

約数和(自身を含む): 46327680

約数和(自身を除く): 18048806

約数列:

[1, 2, 13, 26, 71, 142, 923, 1846, 15319, 30638, 199147, 398294, 1087649, 2175298, 14139437, 28278874]

約数ペア:

[(1, 28278874), (2, 14139437), (13, 2175298), (26, 1087649), (71, 398294), (142, 199147), (923, 30638), (1846, 15319)]