21279416472

素因数分解:

$2^3\times 3^3\times {\mathrm{19}}^3\times {\mathrm{53}}^1\times {\mathrm{271}}^1$

素因数の和:396

約数の個数: 256

約数和(自身を含む): 63804672000

約数和(自身を除く): 42525255528

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 27, 36, 38, 53, 54, 57, 72, 76, 106, 108, 114, 152, 159, 171, 212, 216, 228, 271, 318, 342, 361, 424, 456, 477, 513, 542, 636, 684, 722, 813, 954, 1007, 1026, 1083, 1084, 1272, 1368, 1431, 1444, 1626, 1908, 2014, 2052, 2166, 2168, 2439, 2862, 2888, 3021, 3249, 3252, 3816, 4028, 4104, 4332, 4878, 5149, 5724, 6042, 6498, 6504, 6859, 7317, 8056, 8664, 9063, 9747, 9756, 10298, 11448, 12084, 12996, 13718, 14363, 14634, 15447, 18126, 19133, 19494, 19512, 20577, 20596, 24168, 25992, 27189, 27436, 28726, 29268, 30894, 36252, 38266, 38988, 41154, 41192, 43089, 46341, 54378, 54872, 57399, 57452, 58536, 61731, 61788, 72504, 76532, 77976, 82308, 86178, 92682, 97831, 108756, 114798, 114904, 123462, 123576, 129267, 139023, 153064, 164616, 172197, 172356, 185193, 185364, 195662, 217512, 229596, 246924, 258534, 272897, 278046, 293493, 344394, 344712, 363527, 370386, 370728, 387801, 391324, 459192, 493848, 516591, 517068, 545794, 556092, 586986, 688788, 727054, 740772, 775602, 782648, 818691, 880479, 1033182, 1034136, 1090581, 1091588, 1112184, 1173972, 1377576, 1454108, 1481544, 1551204, 1637382, 1760958, 1858789, 2066364, 2181162, 2183176, 2347944, 2456073, 2641437, 2908216, 3102408, 3271743, 3274764, 3521916, 3717578, 4132728, 4362324, 4912146, 5185043, 5282874, 5576367, 6543486, 6549528, 7043832, 7368219, 7435156, 8724648, 9815229, 9824292, 10370086, 10565748, 11152734, 13086972, 14736438, 14870312, 15555129, 16729101, 19630458, 19648584, 20740172, 21131496, 22305468, 26173944, 29472876, 31110258, 33458202, 39260916, 41480344, 44610936, 46665387, 50187303, 58945752, 62220516, 66916404, 78521832, 93330774, 98515817, 100374606, 124441032, 133832808, 139996161, 186661548, 197031634, 200749212, 279992322, 295547451, 373323096, 394063268, 401498424, 559984644, 591094902, 788126536, 886642353, 1119969288, 1182189804, 1773284706, 2364379608, 2659927059, 3546569412, 5319854118, 7093138824, 10639708236, 21279416472]

約数ペア:

[(1, 21279416472), (2, 10639708236), (3, 7093138824), (4, 5319854118), (6, 3546569412), (8, 2659927059), (9, 2364379608), (12, 1773284706), (18, 1182189804), (19, 1119969288), (24, 886642353), (27, 788126536), (36, 591094902), (38, 559984644), (53, 401498424), (54, 394063268), (57, 373323096), (72, 295547451), (76, 279992322), (106, 200749212), (108, 197031634), (114, 186661548), (152, 139996161), (159, 133832808), (171, 124441032), (212, 100374606), (216, 98515817), (228, 93330774), (271, 78521832), (318, 66916404), (342, 62220516), (361, 58945752), (424, 50187303), (456, 46665387), (477, 44610936), (513, 41480344), (542, 39260916), (636, 33458202), (684, 31110258), (722, 29472876), (813, 26173944), (954, 22305468), (1007, 21131496), (1026, 20740172), (1083, 19648584), (1084, 19630458), (1272, 16729101), (1368, 15555129), (1431, 14870312), (1444, 14736438), (1626, 13086972), (1908, 11152734), (2014, 10565748), (2052, 10370086), (2166, 9824292), (2168, 9815229), (2439, 8724648), (2862, 7435156), (2888, 7368219), (3021, 7043832), (3249, 6549528), (3252, 6543486), (3816, 5576367), (4028, 5282874), (4104, 5185043), (4332, 4912146), (4878, 4362324), (5149, 4132728), (5724, 3717578), (6042, 3521916), (6498, 3274764), (6504, 3271743), (6859, 3102408), (7317, 2908216), (8056, 2641437), (8664, 2456073), (9063, 2347944), (9747, 2183176), (9756, 2181162), (10298, 2066364), (11448, 1858789), (12084, 1760958), (12996, 1637382), (13718, 1551204), (14363, 1481544), (14634, 1454108), (15447, 1377576), (18126, 1173972), (19133, 1112184), (19494, 1091588), (19512, 1090581), (20577, 1034136), (20596, 1033182), (24168, 880479), (25992, 818691), (27189, 782648), (27436, 775602), (28726, 740772), (29268, 727054), (30894, 688788), (36252, 586986), (38266, 556092), (38988, 545794), (41154, 517068), (41192, 516591), (43089, 493848), (46341, 459192), (54378, 391324), (54872, 387801), (57399, 370728), (57452, 370386), (58536, 363527), (61731, 344712), (61788, 344394), (72504, 293493), (76532, 278046), (77976, 272897), (82308, 258534), (86178, 246924), (92682, 229596), (97831, 217512), (108756, 195662), (114798, 185364), (114904, 185193), (123462, 172356), (123576, 172197), (129267, 164616), (139023, 153064)]