21371175

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{4523}}^1$

素因数の和:4549

約数の個数: 48

約数和(自身を含む): 44878080

約数和(自身を除く): 23506905

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 135, 175, 189, 225, 315, 525, 675, 945, 1575, 4523, 4725, 13569, 22615, 31661, 40707, 67845, 94983, 113075, 122121, 158305, 203535, 284949, 339225, 474915, 610605, 791525, 854847, 1017675, 1424745, 2374575, 3053025, 4274235, 7123725, 21371175]

約数ペア:

[(1, 21371175), (3, 7123725), (5, 4274235), (7, 3053025), (9, 2374575), (15, 1424745), (21, 1017675), (25, 854847), (27, 791525), (35, 610605), (45, 474915), (63, 339225), (75, 284949), (105, 203535), (135, 158305), (175, 122121), (189, 113075), (225, 94983), (315, 67845), (525, 40707), (675, 31661), (945, 22615), (1575, 13569), (4523, 4725)]