18701683

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 27234144

約数和(自身を除く): 8532461

約数列:

[1, 7, 11, 13, 17, 49, 77, 91, 119, 143, 157, 187, 221, 539, 637, 833, 1001, 1099, 1309, 1547, 1727, 2041, 2431, 2669, 7007, 7693, 9163, 10829, 12089, 14287, 17017, 18683, 22451, 29359, 34697, 84623, 100009, 119119, 130781, 157157, 205513, 242879, 381667, 1100099, 1438591, 1700153, 2671669, 18701683]

約数ペア:

[(1, 18701683), (7, 2671669), (11, 1700153), (13, 1438591), (17, 1100099), (49, 381667), (77, 242879), (91, 205513), (119, 157157), (143, 130781), (157, 119119), (187, 100009), (221, 84623), (539, 34697), (637, 29359), (833, 22451), (1001, 18683), (1099, 17017), (1309, 14287), (1547, 12089), (1727, 10829), (2041, 9163), (2431, 7693), (2669, 7007)]