21705728

素因数分解:

$2^{10}\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:119

約数の個数: 88

約数和(自身を含む): 49521024

約数和(自身を除く): 27815296

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 41, 44, 47, 64, 82, 88, 94, 128, 164, 176, 188, 256, 328, 352, 376, 451, 512, 517, 656, 704, 752, 902, 1024, 1034, 1312, 1408, 1504, 1804, 1927, 2068, 2624, 2816, 3008, 3608, 3854, 4136, 5248, 5632, 6016, 7216, 7708, 8272, 10496, 11264, 12032, 14432, 15416, 16544, 20992, 21197, 24064, 28864, 30832, 33088, 41984, 42394, 48128, 57728, 61664, 66176, 84788, 115456, 123328, 132352, 169576, 230912, 246656, 264704, 339152, 461824, 493312, 529408, 678304, 986624, 1356608, 1973248, 2713216, 5426432, 10852864, 21705728]

約数ペア:

[(1, 21705728), (2, 10852864), (4, 5426432), (8, 2713216), (11, 1973248), (16, 1356608), (22, 986624), (32, 678304), (41, 529408), (44, 493312), (47, 461824), (64, 339152), (82, 264704), (88, 246656), (94, 230912), (128, 169576), (164, 132352), (176, 123328), (188, 115456), (256, 84788), (328, 66176), (352, 61664), (376, 57728), (451, 48128), (512, 42394), (517, 41984), (656, 33088), (704, 30832), (752, 28864), (902, 24064), (1024, 21197), (1034, 20992), (1312, 16544), (1408, 15416), (1504, 14432), (1804, 12032), (1927, 11264), (2068, 10496), (2624, 8272), (2816, 7708), (3008, 7216), (3608, 6016), (3854, 5632), (4136, 5248)]