726480009

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{289319}}^1$

素因数の和:289362

約数の個数: 20

約数和(自身を含む): 1120247040

約数和(自身を除く): 393767031

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 289319, 867957, 2603871, 7811613, 8968889, 23434839, 26906667, 80720001, 242160003, 726480009]

約数ペア:

[(1, 726480009), (3, 242160003), (9, 80720001), (27, 26906667), (31, 23434839), (81, 8968889), (93, 7811613), (279, 2603871), (837, 867957), (2511, 289319)]