21037984

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{1013}}^1$

素因数の和:1093

約数の個数: 48

約数和(自身を含む): 45995040

約数和(自身を除く): 24957056

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 59, 88, 118, 176, 236, 352, 472, 649, 944, 1013, 1298, 1888, 2026, 2596, 4052, 5192, 8104, 10384, 11143, 16208, 20768, 22286, 32416, 44572, 59767, 89144, 119534, 178288, 239068, 356576, 478136, 657437, 956272, 1314874, 1912544, 2629748, 5259496, 10518992, 21037984]

約数ペア:

[(1, 21037984), (2, 10518992), (4, 5259496), (8, 2629748), (11, 1912544), (16, 1314874), (22, 956272), (32, 657437), (44, 478136), (59, 356576), (88, 239068), (118, 178288), (176, 119534), (236, 89144), (352, 59767), (472, 44572), (649, 32416), (944, 22286), (1013, 20768), (1298, 16208), (1888, 11143), (2026, 10384), (2596, 8104), (4052, 5192)]