81051243

素因数分解:

$3^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:193

約数の個数: 64

約数和(自身を含む): 139238400

約数和(自身を除く): 58187157

約数列:

[1, 3, 7, 13, 21, 39, 49, 73, 83, 91, 147, 219, 249, 273, 343, 511, 581, 637, 949, 1029, 1079, 1533, 1743, 1911, 2847, 3237, 3577, 4067, 4459, 6059, 6643, 7553, 10731, 12201, 13377, 18177, 19929, 22659, 25039, 28469, 42413, 46501, 52871, 75117, 78767, 85407, 127239, 139503, 158613, 236301, 296891, 325507, 370097, 551369, 890673, 976521, 1110291, 1654107, 2078237, 3859583, 6234711, 11578749, 27017081, 81051243]

約数ペア:

[(1, 81051243), (3, 27017081), (7, 11578749), (13, 6234711), (21, 3859583), (39, 2078237), (49, 1654107), (73, 1110291), (83, 976521), (91, 890673), (147, 551369), (219, 370097), (249, 325507), (273, 296891), (343, 236301), (511, 158613), (581, 139503), (637, 127239), (949, 85407), (1029, 78767), (1079, 75117), (1533, 52871), (1743, 46501), (1911, 42413), (2847, 28469), (3237, 25039), (3577, 22659), (4067, 19929), (4459, 18177), (6059, 13377), (6643, 12201), (7553, 10731)]