21000852477

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{881}}^1\times {\mathrm{967}}^1$

素因数の和:1951

約数の個数: 64

約数和(自身を含む): 34424248320

約数和(自身を除く): 13423395843

約数列:

[1, 3, 9, 11, 27, 33, 83, 99, 249, 297, 747, 881, 913, 967, 2241, 2643, 2739, 2901, 7929, 8217, 8703, 9691, 10637, 23787, 24651, 26109, 29073, 31911, 73123, 80261, 87219, 95733, 219369, 240783, 261657, 287199, 658107, 722349, 804353, 851927, 882871, 1974321, 2167047, 2413059, 2555781, 2648613, 7239177, 7667343, 7945839, 9371197, 21717531, 23002029, 23837517, 28113591, 70709941, 84340773, 212129823, 253022319, 636389469, 777809351, 1909168407, 2333428053, 7000284159, 21000852477]

約数ペア:

[(1, 21000852477), (3, 7000284159), (9, 2333428053), (11, 1909168407), (27, 777809351), (33, 636389469), (83, 253022319), (99, 212129823), (249, 84340773), (297, 70709941), (747, 28113591), (881, 23837517), (913, 23002029), (967, 21717531), (2241, 9371197), (2643, 7945839), (2739, 7667343), (2901, 7239177), (7929, 2648613), (8217, 2555781), (8703, 2413059), (9691, 2167047), (10637, 1974321), (23787, 882871), (24651, 851927), (26109, 804353), (29073, 722349), (31911, 658107), (73123, 287199), (80261, 261657), (87219, 240783), (95733, 219369)]