187487181

素因数分解:

$3^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{9887}}^1$

素因数の和:9950

約数の個数: 36

約数和(自身を含む): 322388352

約数和(自身を除く): 134901171

約数列:

[1, 3, 7, 9, 21, 43, 49, 63, 129, 147, 301, 387, 441, 903, 2107, 2709, 6321, 9887, 18963, 29661, 69209, 88983, 207627, 425141, 484463, 622881, 1275423, 1453389, 2975987, 3826269, 4360167, 8927961, 20831909, 26783883, 62495727, 187487181]

約数ペア:

[(1, 187487181), (3, 62495727), (7, 26783883), (9, 20831909), (21, 8927961), (43, 4360167), (49, 3826269), (63, 2975987), (129, 1453389), (147, 1275423), (301, 622881), (387, 484463), (441, 425141), (903, 207627), (2107, 88983), (2709, 69209), (6321, 29661), (9887, 18963)]