18837225

素因数分解:

$3^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:132

約数の個数: 96

約数和(自身を含む): 39283200

約数和(自身を除く): 20445975

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 43, 45, 55, 59, 75, 99, 129, 135, 165, 177, 215, 225, 275, 295, 297, 387, 473, 495, 531, 645, 649, 675, 825, 885, 1075, 1161, 1419, 1475, 1485, 1593, 1935, 1947, 2365, 2475, 2537, 2655, 3225, 3245, 4257, 4425, 5805, 5841, 7095, 7425, 7611, 7965, 9675, 9735, 11825, 12685, 12771, 13275, 16225, 17523, 21285, 22833, 27907, 29025, 29205, 35475, 38055, 39825, 48675, 63425, 63855, 68499, 83721, 87615, 106425, 114165, 139535, 146025, 190275, 251163, 319275, 342495, 418605, 438075, 570825, 697675, 753489, 1255815, 1712475, 2093025, 3767445, 6279075, 18837225]

約数ペア:

[(1, 18837225), (3, 6279075), (5, 3767445), (9, 2093025), (11, 1712475), (15, 1255815), (25, 753489), (27, 697675), (33, 570825), (43, 438075), (45, 418605), (55, 342495), (59, 319275), (75, 251163), (99, 190275), (129, 146025), (135, 139535), (165, 114165), (177, 106425), (215, 87615), (225, 83721), (275, 68499), (295, 63855), (297, 63425), (387, 48675), (473, 39825), (495, 38055), (531, 35475), (645, 29205), (649, 29025), (675, 27907), (825, 22833), (885, 21285), (1075, 17523), (1161, 16225), (1419, 13275), (1475, 12771), (1485, 12685), (1593, 11825), (1935, 9735), (1947, 9675), (2365, 7965), (2475, 7611), (2537, 7425), (2655, 7095), (3225, 5841), (3245, 5805), (4257, 4425)]