21705376

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{383}}^1$

素因数の和:434

約数の個数: 96

約数和(自身を含む): 55738368

約数和(自身を除く): 34032992

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 23, 28, 32, 44, 46, 56, 77, 88, 92, 112, 154, 161, 176, 184, 224, 253, 308, 322, 352, 368, 383, 506, 616, 644, 736, 766, 1012, 1232, 1288, 1532, 1771, 2024, 2464, 2576, 2681, 3064, 3542, 4048, 4213, 5152, 5362, 6128, 7084, 8096, 8426, 8809, 10724, 12256, 14168, 16852, 17618, 21448, 28336, 29491, 33704, 35236, 42896, 56672, 58982, 61663, 67408, 70472, 85792, 96899, 117964, 123326, 134816, 140944, 193798, 235928, 246652, 281888, 387596, 471856, 493304, 678293, 775192, 943712, 986608, 1356586, 1550384, 1973216, 2713172, 3100768, 5426344, 10852688, 21705376]

約数ペア:

[(1, 21705376), (2, 10852688), (4, 5426344), (7, 3100768), (8, 2713172), (11, 1973216), (14, 1550384), (16, 1356586), (22, 986608), (23, 943712), (28, 775192), (32, 678293), (44, 493304), (46, 471856), (56, 387596), (77, 281888), (88, 246652), (92, 235928), (112, 193798), (154, 140944), (161, 134816), (176, 123326), (184, 117964), (224, 96899), (253, 85792), (308, 70472), (322, 67408), (352, 61663), (368, 58982), (383, 56672), (506, 42896), (616, 35236), (644, 33704), (736, 29491), (766, 28336), (1012, 21448), (1232, 17618), (1288, 16852), (1532, 14168), (1771, 12256), (2024, 10724), (2464, 8809), (2576, 8426), (2681, 8096), (3064, 7084), (3542, 6128), (4048, 5362), (4213, 5152)]