18616455

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{263}}^1$

素因数の和:309

約数の個数: 72

約数和(自身を含む): 38342304

約数和(自身を除く): 19725849

約数列:

[1, 3, 5, 9, 11, 13, 15, 33, 39, 45, 55, 65, 99, 117, 121, 143, 165, 195, 263, 363, 429, 495, 585, 605, 715, 789, 1089, 1287, 1315, 1573, 1815, 2145, 2367, 2893, 3419, 3945, 4719, 5445, 6435, 7865, 8679, 10257, 11835, 14157, 14465, 17095, 23595, 26037, 30771, 31823, 37609, 43395, 51285, 70785, 95469, 112827, 130185, 153855, 159115, 188045, 286407, 338481, 413699, 477345, 564135, 1241097, 1432035, 1692405, 2068495, 3723291, 6205485, 18616455]

約数ペア:

[(1, 18616455), (3, 6205485), (5, 3723291), (9, 2068495), (11, 1692405), (13, 1432035), (15, 1241097), (33, 564135), (39, 477345), (45, 413699), (55, 338481), (65, 286407), (99, 188045), (117, 159115), (121, 153855), (143, 130185), (165, 112827), (195, 95469), (263, 70785), (363, 51285), (429, 43395), (495, 37609), (585, 31823), (605, 30771), (715, 26037), (789, 23595), (1089, 17095), (1287, 14465), (1315, 14157), (1573, 11835), (1815, 10257), (2145, 8679), (2367, 7865), (2893, 6435), (3419, 5445), (3945, 4719)]