81738657

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:291

約数の個数: 96

約数和(自身を含む): 162978816

約数和(自身を除く): 81240159

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 43, 63, 77, 91, 99, 117, 129, 143, 211, 231, 273, 301, 387, 429, 473, 559, 633, 693, 819, 903, 1001, 1287, 1419, 1477, 1677, 1899, 2321, 2709, 2743, 3003, 3311, 3913, 4257, 4431, 5031, 6149, 6963, 8229, 9009, 9073, 9933, 11739, 13293, 16247, 18447, 19201, 20889, 24687, 27219, 29799, 30173, 35217, 43043, 48741, 55341, 57603, 63511, 81657, 90519, 99803, 117949, 129129, 146223, 172809, 190533, 211211, 271557, 299409, 353847, 387387, 571599, 633633, 698621, 825643, 898227, 1061541, 1297439, 1900899, 2095863, 2476929, 3892317, 6287589, 7430787, 9082073, 11676951, 27246219, 81738657]

約数ペア:

[(1, 81738657), (3, 27246219), (7, 11676951), (9, 9082073), (11, 7430787), (13, 6287589), (21, 3892317), (33, 2476929), (39, 2095863), (43, 1900899), (63, 1297439), (77, 1061541), (91, 898227), (99, 825643), (117, 698621), (129, 633633), (143, 571599), (211, 387387), (231, 353847), (273, 299409), (301, 271557), (387, 211211), (429, 190533), (473, 172809), (559, 146223), (633, 129129), (693, 117949), (819, 99803), (903, 90519), (1001, 81657), (1287, 63511), (1419, 57603), (1477, 55341), (1677, 48741), (1899, 43043), (2321, 35217), (2709, 30173), (2743, 29799), (3003, 27219), (3311, 24687), (3913, 20889), (4257, 19201), (4431, 18447), (5031, 16247), (6149, 13293), (6963, 11739), (8229, 9933), (9009, 9073)]