21457216

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1051}}^1$

素因数の和:1103

約数の個数: 56

約数和(自身を含む): 48097440

約数和(自身を除く): 26640224

約数列:

[1, 2, 4, 8, 11, 16, 22, 29, 32, 44, 58, 64, 88, 116, 176, 232, 319, 352, 464, 638, 704, 928, 1051, 1276, 1856, 2102, 2552, 4204, 5104, 8408, 10208, 11561, 16816, 20416, 23122, 30479, 33632, 46244, 60958, 67264, 92488, 121916, 184976, 243832, 335269, 369952, 487664, 670538, 739904, 975328, 1341076, 1950656, 2682152, 5364304, 10728608, 21457216]

約数ペア:

[(1, 21457216), (2, 10728608), (4, 5364304), (8, 2682152), (11, 1950656), (16, 1341076), (22, 975328), (29, 739904), (32, 670538), (44, 487664), (58, 369952), (64, 335269), (88, 243832), (116, 184976), (176, 121916), (232, 92488), (319, 67264), (352, 60958), (464, 46244), (638, 33632), (704, 30479), (928, 23122), (1051, 20416), (1276, 16816), (1856, 11561), (2102, 10208), (2552, 8408), (4204, 5104)]