9905007

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1567}}^1$

素因数の和:1627

約数の個数: 24

約数和(自身を含む): 15730176

約数和(自身を除く): 5825169

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 1567, 2107, 4701, 6321, 10969, 32907, 67381, 76783, 202143, 230349, 471667, 1415001, 3301669, 9905007]

約数ペア:

[(1, 9905007), (3, 3301669), (7, 1415001), (21, 471667), (43, 230349), (49, 202143), (129, 76783), (147, 67381), (301, 32907), (903, 10969), (1567, 6321), (2107, 4701)]