19440081

素因数分解:

$3^4\times {\mathrm{107}}^1\times {\mathrm{2243}}^1$

素因数の和:2362

約数の個数: 20

約数和(自身を含む): 29324592

約数和(自身を除く): 9884511

約数列:

[1, 3, 9, 27, 81, 107, 321, 963, 2243, 2889, 6729, 8667, 20187, 60561, 181683, 240001, 720003, 2160009, 6480027, 19440081]

約数ペア:

[(1, 19440081), (3, 6480027), (9, 2160009), (27, 720003), (81, 240001), (107, 181683), (321, 60561), (963, 20187), (2243, 8667), (2889, 6729)]