81879898

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{2927}}^1$

素因数の和:3197

約数の個数: 16

約数和(自身を含む): 125224704

約数和(自身を除く): 43344806

約数列:

[1, 2, 71, 142, 197, 394, 2927, 5854, 13987, 27974, 207817, 415634, 576619, 1153238, 40939949, 81879898]

約数ペア:

[(1, 81879898), (2, 40939949), (71, 1153238), (142, 576619), (197, 415634), (394, 207817), (2927, 27974), (5854, 13987)]