21379512

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{503}}^1$

素因数の和:553

約数の個数: 128

約数和(自身を含む): 69672960

約数和(自身を除く): 48293448

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 23, 24, 28, 33, 42, 44, 46, 56, 66, 69, 77, 84, 88, 92, 132, 138, 154, 161, 168, 184, 231, 253, 264, 276, 308, 322, 462, 483, 503, 506, 552, 616, 644, 759, 924, 966, 1006, 1012, 1288, 1509, 1518, 1771, 1848, 1932, 2012, 2024, 3018, 3036, 3521, 3542, 3864, 4024, 5313, 5533, 6036, 6072, 7042, 7084, 10563, 10626, 11066, 11569, 12072, 14084, 14168, 16599, 21126, 21252, 22132, 23138, 28168, 33198, 34707, 38731, 42252, 42504, 44264, 46276, 66396, 69414, 77462, 80983, 84504, 92552, 116193, 127259, 132792, 138828, 154924, 161966, 232386, 242949, 254518, 277656, 309848, 323932, 381777, 464772, 485898, 509036, 647864, 763554, 890813, 929544, 971796, 1018072, 1527108, 1781626, 1943592, 2672439, 3054216, 3563252, 5344878, 7126504, 10689756, 21379512]

約数ペア:

[(1, 21379512), (2, 10689756), (3, 7126504), (4, 5344878), (6, 3563252), (7, 3054216), (8, 2672439), (11, 1943592), (12, 1781626), (14, 1527108), (21, 1018072), (22, 971796), (23, 929544), (24, 890813), (28, 763554), (33, 647864), (42, 509036), (44, 485898), (46, 464772), (56, 381777), (66, 323932), (69, 309848), (77, 277656), (84, 254518), (88, 242949), (92, 232386), (132, 161966), (138, 154924), (154, 138828), (161, 132792), (168, 127259), (184, 116193), (231, 92552), (253, 84504), (264, 80983), (276, 77462), (308, 69414), (322, 66396), (462, 46276), (483, 44264), (503, 42504), (506, 42252), (552, 38731), (616, 34707), (644, 33198), (759, 28168), (924, 23138), (966, 22132), (1006, 21252), (1012, 21126), (1288, 16599), (1509, 14168), (1518, 14084), (1771, 12072), (1848, 11569), (1932, 11066), (2012, 10626), (2024, 10563), (3018, 7084), (3036, 7042), (3521, 6072), (3542, 6036), (3864, 5533), (4024, 5313)]