21000168

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:101

約数の個数: 256

約数和(自身を含む): 76032000

約数和(自身を除く): 55031832

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 17, 18, 19, 21, 24, 27, 28, 34, 36, 38, 42, 43, 51, 54, 56, 57, 63, 68, 72, 76, 84, 86, 102, 108, 114, 119, 126, 129, 133, 136, 152, 153, 168, 171, 172, 189, 204, 216, 228, 238, 252, 258, 266, 301, 306, 323, 342, 344, 357, 378, 387, 399, 408, 456, 459, 476, 504, 513, 516, 532, 602, 612, 646, 684, 714, 731, 756, 774, 798, 817, 903, 918, 952, 969, 1026, 1032, 1064, 1071, 1161, 1197, 1204, 1224, 1292, 1368, 1428, 1462, 1512, 1548, 1596, 1634, 1806, 1836, 1938, 2052, 2142, 2193, 2261, 2322, 2394, 2408, 2451, 2584, 2709, 2856, 2907, 2924, 3096, 3192, 3213, 3268, 3591, 3612, 3672, 3876, 4104, 4284, 4386, 4522, 4644, 4788, 4902, 5117, 5418, 5719, 5814, 5848, 6426, 6536, 6579, 6783, 7182, 7224, 7353, 7752, 8127, 8568, 8721, 8772, 9044, 9288, 9576, 9804, 10234, 10836, 11438, 11628, 12852, 13158, 13566, 13889, 14364, 14706, 15351, 16254, 17157, 17442, 17544, 18088, 19608, 19737, 20349, 20468, 21672, 22059, 22876, 23256, 25704, 26316, 27132, 27778, 28728, 29412, 30702, 32508, 34314, 34884, 39474, 40698, 40936, 41667, 44118, 45752, 46053, 51471, 52632, 54264, 55556, 58824, 61047, 61404, 65016, 68628, 69768, 78948, 81396, 83334, 88236, 92106, 97223, 102942, 111112, 122094, 122808, 125001, 137256, 138159, 154413, 157896, 162792, 166668, 176472, 184212, 194446, 205884, 244188, 250002, 276318, 291669, 308826, 333336, 368424, 375003, 388892, 411768, 488376, 500004, 552636, 583338, 617652, 750006, 777784, 875007, 1000008, 1105272, 1166676, 1235304, 1500012, 1750014, 2333352, 2625021, 3000024, 3500028, 5250042, 7000056, 10500084, 21000168]

約数ペア:

[(1, 21000168), (2, 10500084), (3, 7000056), (4, 5250042), (6, 3500028), (7, 3000024), (8, 2625021), (9, 2333352), (12, 1750014), (14, 1500012), (17, 1235304), (18, 1166676), (19, 1105272), (21, 1000008), (24, 875007), (27, 777784), (28, 750006), (34, 617652), (36, 583338), (38, 552636), (42, 500004), (43, 488376), (51, 411768), (54, 388892), (56, 375003), (57, 368424), (63, 333336), (68, 308826), (72, 291669), (76, 276318), (84, 250002), (86, 244188), (102, 205884), (108, 194446), (114, 184212), (119, 176472), (126, 166668), (129, 162792), (133, 157896), (136, 154413), (152, 138159), (153, 137256), (168, 125001), (171, 122808), (172, 122094), (189, 111112), (204, 102942), (216, 97223), (228, 92106), (238, 88236), (252, 83334), (258, 81396), (266, 78948), (301, 69768), (306, 68628), (323, 65016), (342, 61404), (344, 61047), (357, 58824), (378, 55556), (387, 54264), (399, 52632), (408, 51471), (456, 46053), (459, 45752), (476, 44118), (504, 41667), (513, 40936), (516, 40698), (532, 39474), (602, 34884), (612, 34314), (646, 32508), (684, 30702), (714, 29412), (731, 28728), (756, 27778), (774, 27132), (798, 26316), (817, 25704), (903, 23256), (918, 22876), (952, 22059), (969, 21672), (1026, 20468), (1032, 20349), (1064, 19737), (1071, 19608), (1161, 18088), (1197, 17544), (1204, 17442), (1224, 17157), (1292, 16254), (1368, 15351), (1428, 14706), (1462, 14364), (1512, 13889), (1548, 13566), (1596, 13158), (1634, 12852), (1806, 11628), (1836, 11438), (1938, 10836), (2052, 10234), (2142, 9804), (2193, 9576), (2261, 9288), (2322, 9044), (2394, 8772), (2408, 8721), (2451, 8568), (2584, 8127), (2709, 7752), (2856, 7353), (2907, 7224), (2924, 7182), (3096, 6783), (3192, 6579), (3213, 6536), (3268, 6426), (3591, 5848), (3612, 5814), (3672, 5719), (3876, 5418), (4104, 5117), (4284, 4902), (4386, 4788), (4522, 4644)]