311991477

素因数分解:

$3^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{15269}}^1$

素因数の和:15425

約数の個数: 24

約数和(自身を含む): 487418400

約数和(自身を除く): 175426923

約数列:

[1, 3, 7, 21, 49, 139, 147, 417, 973, 2919, 6811, 15269, 20433, 45807, 106883, 320649, 748181, 2122391, 2244543, 6367173, 14856737, 44570211, 103997159, 311991477]

約数ペア:

[(1, 311991477), (3, 103997159), (7, 44570211), (21, 14856737), (49, 6367173), (139, 2244543), (147, 2122391), (417, 748181), (973, 320649), (2919, 106883), (6811, 45807), (15269, 20433)]