18209295

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1831}}^1$

素因数の和:1872

約数の個数: 48

約数和(自身を含む): 36009792

約数和(自身を除く): 17800497

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 195, 221, 255, 585, 663, 765, 1105, 1831, 1989, 3315, 5493, 9155, 9945, 16479, 23803, 27465, 31127, 71409, 82395, 93381, 119015, 155635, 214227, 280143, 357045, 404651, 466905, 1071135, 1213953, 1400715, 2023255, 3641859, 6069765, 18209295]

約数ペア:

[(1, 18209295), (3, 6069765), (5, 3641859), (9, 2023255), (13, 1400715), (15, 1213953), (17, 1071135), (39, 466905), (45, 404651), (51, 357045), (65, 280143), (85, 214227), (117, 155635), (153, 119015), (195, 93381), (221, 82395), (255, 71409), (585, 31127), (663, 27465), (765, 23803), (1105, 16479), (1831, 9945), (1989, 9155), (3315, 5493)]