21000391686

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1069}}^1\times {\mathrm{1493}}^1$

素因数の和:2630

約数の個数: 96

約数和(自身を含む): 49376939040

約数和(自身を除く): 28376547354

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 43, 51, 86, 102, 129, 153, 258, 306, 387, 731, 774, 1069, 1462, 1493, 2138, 2193, 2986, 3207, 4386, 4479, 6414, 6579, 8958, 9621, 13158, 13437, 18173, 19242, 25381, 26874, 36346, 45967, 50762, 54519, 64199, 76143, 91934, 109038, 128398, 137901, 152286, 163557, 192597, 228429, 275802, 327114, 385194, 413703, 456858, 577791, 781439, 827406, 1091383, 1155582, 1562878, 1596017, 2182766, 2344317, 3192034, 3274149, 4688634, 4788051, 6548298, 7032951, 9576102, 9822447, 14065902, 14364153, 19644894, 27132289, 28728306, 54264578, 68628731, 81396867, 137257462, 162793734, 205886193, 244190601, 411772386, 488381202, 617658579, 1166688427, 1235317158, 2333376854, 3500065281, 7000130562, 10500195843, 21000391686]

約数ペア:

[(1, 21000391686), (2, 10500195843), (3, 7000130562), (6, 3500065281), (9, 2333376854), (17, 1235317158), (18, 1166688427), (34, 617658579), (43, 488381202), (51, 411772386), (86, 244190601), (102, 205886193), (129, 162793734), (153, 137257462), (258, 81396867), (306, 68628731), (387, 54264578), (731, 28728306), (774, 27132289), (1069, 19644894), (1462, 14364153), (1493, 14065902), (2138, 9822447), (2193, 9576102), (2986, 7032951), (3207, 6548298), (4386, 4788051), (4479, 4688634), (6414, 3274149), (6579, 3192034), (8958, 2344317), (9621, 2182766), (13158, 1596017), (13437, 1562878), (18173, 1155582), (19242, 1091383), (25381, 827406), (26874, 781439), (36346, 577791), (45967, 456858), (50762, 413703), (54519, 385194), (64199, 327114), (76143, 275802), (91934, 228429), (109038, 192597), (128398, 163557), (137901, 152286)]