28469727

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{2011}}^1$

素因数の和:2052

約数の個数: 36

約数和(自身を含む): 48702472

約数和(自身を除く): 20232745

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 121, 143, 363, 429, 1089, 1287, 1573, 2011, 4719, 6033, 14157, 18099, 22121, 26143, 66363, 78429, 199089, 235287, 243331, 287573, 729993, 862719, 2189979, 2588157, 3163303, 9489909, 28469727]

約数ペア:

[(1, 28469727), (3, 9489909), (9, 3163303), (11, 2588157), (13, 2189979), (33, 862719), (39, 729993), (99, 287573), (117, 243331), (121, 235287), (143, 199089), (363, 78429), (429, 66363), (1089, 26143), (1287, 22121), (1573, 18099), (2011, 14157), (4719, 6033)]