18921216

素因数分解:

$2^8\times 3^1\times {\mathrm{71}}^1\times {\mathrm{347}}^1$

素因数の和:437

約数の個数: 72

約数和(自身を含む): 51214464

約数和(自身を除く): 32293248

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 71, 96, 128, 142, 192, 213, 256, 284, 347, 384, 426, 568, 694, 768, 852, 1041, 1136, 1388, 1704, 2082, 2272, 2776, 3408, 4164, 4544, 5552, 6816, 8328, 9088, 11104, 13632, 16656, 18176, 22208, 24637, 27264, 33312, 44416, 49274, 54528, 66624, 73911, 88832, 98548, 133248, 147822, 197096, 266496, 295644, 394192, 591288, 788384, 1182576, 1576768, 2365152, 3153536, 4730304, 6307072, 9460608, 18921216]

約数ペア:

[(1, 18921216), (2, 9460608), (3, 6307072), (4, 4730304), (6, 3153536), (8, 2365152), (12, 1576768), (16, 1182576), (24, 788384), (32, 591288), (48, 394192), (64, 295644), (71, 266496), (96, 197096), (128, 147822), (142, 133248), (192, 98548), (213, 88832), (256, 73911), (284, 66624), (347, 54528), (384, 49274), (426, 44416), (568, 33312), (694, 27264), (768, 24637), (852, 22208), (1041, 18176), (1136, 16656), (1388, 13632), (1704, 11104), (2082, 9088), (2272, 8328), (2776, 6816), (3408, 5552), (4164, 4544)]