21261824

素因数分解:

$2^9\times {\mathrm{131}}^1\times {\mathrm{317}}^1$

素因数の和:466

約数の個数: 40

約数和(自身を含む): 42941448

約数和(自身を除く): 21679624

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 131, 256, 262, 317, 512, 524, 634, 1048, 1268, 2096, 2536, 4192, 5072, 8384, 10144, 16768, 20288, 33536, 40576, 41527, 67072, 81152, 83054, 162304, 166108, 332216, 664432, 1328864, 2657728, 5315456, 10630912, 21261824]

約数ペア:

[(1, 21261824), (2, 10630912), (4, 5315456), (8, 2657728), (16, 1328864), (32, 664432), (64, 332216), (128, 166108), (131, 162304), (256, 83054), (262, 81152), (317, 67072), (512, 41527), (524, 40576), (634, 33536), (1048, 20288), (1268, 16768), (2096, 10144), (2536, 8384), (4192, 5072)]