81814019

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{5749}}^1$

素因数の和:5882

約数の個数: 16

約数和(自身を含む): 99360000

約数和(自身を除く): 17545981

約数列:

[1, 7, 19, 107, 133, 749, 2033, 5749, 14231, 40243, 109231, 615143, 764617, 4306001, 11687717, 81814019]

約数ペア:

[(1, 81814019), (7, 11687717), (19, 4306001), (107, 764617), (133, 615143), (749, 109231), (2033, 40243), (5749, 14231)]