16992009

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:178

約数の個数: 36

約数和(自身を含む): 26570544

約数和(自身を除く): 9578535

約数列:

[1, 3, 9, 23, 43, 69, 83, 129, 207, 249, 387, 529, 747, 989, 1587, 1909, 2967, 3569, 4761, 5727, 8901, 10707, 17181, 22747, 32121, 43907, 68241, 82087, 131721, 204723, 246261, 395163, 738783, 1888001, 5664003, 16992009]

約数ペア:

[(1, 16992009), (3, 5664003), (9, 1888001), (23, 738783), (43, 395163), (69, 246261), (83, 204723), (129, 131721), (207, 82087), (249, 68241), (387, 43907), (529, 32121), (747, 22747), (989, 17181), (1587, 10707), (1909, 8901), (2967, 5727), (3569, 4761)]