287203059

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{20287}}^1$

素因数の和:20328

約数の個数: 36

約数和(自身を含む): 491091328

約数和(自身を除く): 203888269

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 121, 143, 363, 429, 1089, 1287, 1573, 4719, 14157, 20287, 60861, 182583, 223157, 263731, 669471, 791193, 2008413, 2373579, 2454727, 2901041, 7364181, 8703123, 22092543, 26109369, 31911451, 95734353, 287203059]

約数ペア:

[(1, 287203059), (3, 95734353), (9, 31911451), (11, 26109369), (13, 22092543), (33, 8703123), (39, 7364181), (99, 2901041), (117, 2454727), (121, 2373579), (143, 2008413), (363, 791193), (429, 669471), (1089, 263731), (1287, 223157), (1573, 182583), (4719, 60861), (14157, 20287)]