28156869

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{827}}^1$

素因数の和:946

約数の個数: 32

約数和(自身を含む): 45440640

約数和(自身を除く): 17283771

約数列:

[1, 3, 9, 13, 27, 39, 97, 117, 291, 351, 827, 873, 1261, 2481, 2619, 3783, 7443, 10751, 11349, 22329, 32253, 34047, 80219, 96759, 240657, 290277, 721971, 1042847, 2165913, 3128541, 9385623, 28156869]

約数ペア:

[(1, 28156869), (3, 9385623), (9, 3128541), (13, 2165913), (27, 1042847), (39, 721971), (97, 290277), (117, 240657), (291, 96759), (351, 80219), (827, 34047), (873, 32253), (1261, 22329), (2481, 11349), (2619, 10751), (3783, 7443)]