31771719

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{7103}}^1$

素因数の和:7187

約数の個数: 24

約数和(自身を含む): 53194752

約数和(自身を除く): 21423033

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 7103, 21309, 49721, 63927, 149163, 447489, 504313, 1512939, 3530191, 4538817, 10590573, 31771719]

約数ペア:

[(1, 31771719), (3, 10590573), (7, 4538817), (9, 3530191), (21, 1512939), (63, 504313), (71, 447489), (213, 149163), (497, 63927), (639, 49721), (1491, 21309), (4473, 7103)]