81664219

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{8387}}^1$

素因数の和:8514

約数の個数: 16

約数和(自身を含む): 101461248

約数和(自身を除く): 19797029

約数列:

[1, 7, 13, 91, 107, 749, 1391, 8387, 9737, 58709, 109031, 763217, 897409, 6281863, 11666317, 81664219]

約数ペア:

[(1, 81664219), (7, 11666317), (13, 6281863), (91, 897409), (107, 763217), (749, 109031), (1391, 58709), (8387, 9737)]