20937216

素因数分解:

$2^9\times 3^1\times {\mathrm{43}}^1\times {\mathrm{317}}^1$

素因数の和:381

約数の個数: 80

約数和(自身を含む): 57255264

約数和(自身を除く): 36318048

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 43, 48, 64, 86, 96, 128, 129, 172, 192, 256, 258, 317, 344, 384, 512, 516, 634, 688, 768, 951, 1032, 1268, 1376, 1536, 1902, 2064, 2536, 2752, 3804, 4128, 5072, 5504, 7608, 8256, 10144, 11008, 13631, 15216, 16512, 20288, 22016, 27262, 30432, 33024, 40576, 40893, 54524, 60864, 66048, 81152, 81786, 109048, 121728, 162304, 163572, 218096, 243456, 327144, 436192, 486912, 654288, 872384, 1308576, 1744768, 2617152, 3489536, 5234304, 6979072, 10468608, 20937216]

約数ペア:

[(1, 20937216), (2, 10468608), (3, 6979072), (4, 5234304), (6, 3489536), (8, 2617152), (12, 1744768), (16, 1308576), (24, 872384), (32, 654288), (43, 486912), (48, 436192), (64, 327144), (86, 243456), (96, 218096), (128, 163572), (129, 162304), (172, 121728), (192, 109048), (256, 81786), (258, 81152), (317, 66048), (344, 60864), (384, 54524), (512, 40893), (516, 40576), (634, 33024), (688, 30432), (768, 27262), (951, 22016), (1032, 20288), (1268, 16512), (1376, 15216), (1536, 13631), (1902, 11008), (2064, 10144), (2536, 8256), (2752, 7608), (3804, 5504), (4128, 5072)]