128790729

素因数分解:

$3^5\times {\mathrm{617}}^1\times {\mathrm{859}}^1$

素因数の和:1491

約数の個数: 24

約数和(自身を含む): 193458720

約数和(自身を除く): 64667991

約数列:

[1, 3, 9, 27, 81, 243, 617, 859, 1851, 2577, 5553, 7731, 16659, 23193, 49977, 69579, 149931, 208737, 530003, 1590009, 4770027, 14310081, 42930243, 128790729]

約数ペア:

[(1, 128790729), (3, 42930243), (9, 14310081), (27, 4770027), (81, 1590009), (243, 530003), (617, 208737), (859, 149931), (1851, 69579), (2577, 49977), (5553, 23193), (7731, 16659)]