71211791

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{499}}^1$

素因数の和:591

約数の個数: 32

約数和(自身を含む): 91200000

約数和(自身を除く): 19988209

約数列:

[1, 7, 19, 29, 37, 133, 203, 259, 499, 551, 703, 1073, 3493, 3857, 4921, 7511, 9481, 14471, 18463, 20387, 66367, 101297, 129241, 142709, 274949, 350797, 535427, 1924643, 2455579, 3747989, 10173113, 71211791]

約数ペア:

[(1, 71211791), (7, 10173113), (19, 3747989), (29, 2455579), (37, 1924643), (133, 535427), (203, 350797), (259, 274949), (499, 142709), (551, 129241), (703, 101297), (1073, 66367), (3493, 20387), (3857, 18463), (4921, 14471), (7511, 9481)]