20512247301

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{64717}}^1$

素因数の和:64792

約数の個数: 80

約数和(自身を含む): 38590566784

約数和(自身を除く): 18078319483

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 43, 63, 81, 91, 117, 129, 189, 273, 301, 351, 387, 559, 567, 819, 903, 1053, 1161, 1677, 2457, 2709, 3483, 3913, 5031, 7371, 8127, 11739, 15093, 24381, 35217, 45279, 64717, 105651, 194151, 316953, 453019, 582453, 841321, 1359057, 1747359, 2523963, 2782831, 4077171, 5242077, 5889247, 7571889, 8348493, 12231513, 17667741, 19479817, 22715667, 25045479, 36176803, 36694539, 53003223, 58439451, 68147001, 75136437, 108530409, 159009669, 175318353, 225409311, 253237621, 325591227, 477029007, 525955059, 759712863, 976773681, 1577865177, 2279138589, 2930321043, 6837415767, 20512247301]

約数ペア:

[(1, 20512247301), (3, 6837415767), (7, 2930321043), (9, 2279138589), (13, 1577865177), (21, 976773681), (27, 759712863), (39, 525955059), (43, 477029007), (63, 325591227), (81, 253237621), (91, 225409311), (117, 175318353), (129, 159009669), (189, 108530409), (273, 75136437), (301, 68147001), (351, 58439451), (387, 53003223), (559, 36694539), (567, 36176803), (819, 25045479), (903, 22715667), (1053, 19479817), (1161, 17667741), (1677, 12231513), (2457, 8348493), (2709, 7571889), (3483, 5889247), (3913, 5242077), (5031, 4077171), (7371, 2782831), (8127, 2523963), (11739, 1747359), (15093, 1359057), (24381, 841321), (35217, 582453), (45279, 453019), (64717, 316953), (105651, 194151)]