21191104

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{971}}^1$

素因数の和:1025

約数の個数: 56

約数和(自身を含む): 47402496

約数和(自身を除く): 26211392

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 64, 88, 124, 176, 248, 341, 352, 496, 682, 704, 971, 992, 1364, 1942, 1984, 2728, 3884, 5456, 7768, 10681, 10912, 15536, 21362, 21824, 30101, 31072, 42724, 60202, 62144, 85448, 120404, 170896, 240808, 331111, 341792, 481616, 662222, 683584, 963232, 1324444, 1926464, 2648888, 5297776, 10595552, 21191104]

約数ペア:

[(1, 21191104), (2, 10595552), (4, 5297776), (8, 2648888), (11, 1926464), (16, 1324444), (22, 963232), (31, 683584), (32, 662222), (44, 481616), (62, 341792), (64, 331111), (88, 240808), (124, 170896), (176, 120404), (248, 85448), (341, 62144), (352, 60202), (496, 42724), (682, 31072), (704, 30101), (971, 21824), (992, 21362), (1364, 15536), (1942, 10912), (1984, 10681), (2728, 7768), (3884, 5456)]