21305416.000000000

素因数分解:

$2^6\times 3^2\times {\mathrm{271651}}^1$

素因数の和:271669

約数の個数: 42

約数和(自身を含む): 448497452

約数和(自身を除く): 292026476

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 144, 192, 288, 576, 271651, 543302, 814953, 1086604, 1629906, 2173208, 2444859, 3259812, 4346416, 4889718, 6519624, 8692832, 9779436, 13039248, 17385664, 19558872, 26078496, 39117744, 52156992, 78235488, 156470976]

約数ペア:

[(1, 156470976), (2, 78235488), (3, 52156992), (4, 39117744), (6, 26078496), (8, 19558872), (9, 17385664), (12, 13039248), (16, 9779436), (18, 8692832), (24, 6519624), (32, 4889718), (36, 4346416), (48, 3259812), (64, 2444859), (72, 2173208), (96, 1629906), (144, 1086604), (192, 814953), (288, 543302), (576, 271651)]