21514240

素因数分解:

$2^{11}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1$

素因数の和:229

約数の個数: 96

約数和(自身を含む): 56609280

約数和(自身を除く): 35095040

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 191, 220, 256, 320, 352, 382, 440, 512, 640, 704, 764, 880, 955, 1024, 1280, 1408, 1528, 1760, 1910, 2048, 2101, 2560, 2816, 3056, 3520, 3820, 4202, 5120, 5632, 6112, 7040, 7640, 8404, 10240, 10505, 11264, 12224, 14080, 15280, 16808, 21010, 22528, 24448, 28160, 30560, 33616, 42020, 48896, 56320, 61120, 67232, 84040, 97792, 112640, 122240, 134464, 168080, 195584, 244480, 268928, 336160, 391168, 488960, 537856, 672320, 977920, 1075712, 1344640, 1955840, 2151424, 2689280, 4302848, 5378560, 10757120, 21514240]

約数ペア:

[(1, 21514240), (2, 10757120), (4, 5378560), (5, 4302848), (8, 2689280), (10, 2151424), (11, 1955840), (16, 1344640), (20, 1075712), (22, 977920), (32, 672320), (40, 537856), (44, 488960), (55, 391168), (64, 336160), (80, 268928), (88, 244480), (110, 195584), (128, 168080), (160, 134464), (176, 122240), (191, 112640), (220, 97792), (256, 84040), (320, 67232), (352, 61120), (382, 56320), (440, 48896), (512, 42020), (640, 33616), (704, 30560), (764, 28160), (880, 24448), (955, 22528), (1024, 21010), (1280, 16808), (1408, 15280), (1528, 14080), (1760, 12224), (1910, 11264), (2048, 10505), (2101, 10240), (2560, 8404), (2816, 7640), (3056, 7040), (3520, 6112), (3820, 5632), (4202, 5120)]