8720109

素因数分解:

$3^3\times {\mathrm{109}}^1\times {\mathrm{2963}}^1$

素因数の和:3081

約数の個数: 16

約数和(自身を含む): 13041600

約数和(自身を除く): 4321491

約数列:

[1, 3, 9, 27, 109, 327, 981, 2943, 2963, 8889, 26667, 80001, 322967, 968901, 2906703, 8720109]

約数ペア:

[(1, 8720109), (3, 2906703), (9, 968901), (27, 322967), (109, 80001), (327, 26667), (981, 8889), (2943, 2963)]