81321838

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{44053}}^1$

素因数の和:44139

約数の個数: 16

約数和(自身を含む): 133219296

約数和(自身を除く): 51897458

約数列:

[1, 2, 13, 26, 71, 142, 923, 1846, 44053, 88106, 572689, 1145378, 3127763, 6255526, 40660919, 81321838]

約数ペア:

[(1, 81321838), (2, 40660919), (13, 6255526), (26, 3127763), (71, 1145378), (142, 572689), (923, 88106), (1846, 44053)]