71813781

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{313}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 117267696

約数和(自身を除く): 45453915

約数列:

[1, 3, 9, 13, 37, 39, 53, 111, 117, 159, 313, 333, 477, 481, 689, 939, 1443, 1961, 2067, 2817, 4069, 4329, 5883, 6201, 11581, 12207, 16589, 17649, 25493, 34743, 36621, 49767, 76479, 104229, 149301, 150553, 215657, 229437, 451659, 613793, 646971, 1354977, 1841379, 1940913, 5524137, 7979309, 23937927, 71813781]

約数ペア:

[(1, 71813781), (3, 23937927), (9, 7979309), (13, 5524137), (37, 1940913), (39, 1841379), (53, 1354977), (111, 646971), (117, 613793), (159, 451659), (313, 229437), (333, 215657), (477, 150553), (481, 149301), (689, 104229), (939, 76479), (1443, 49767), (1961, 36621), (2067, 34743), (2817, 25493), (4069, 17649), (4329, 16589), (5883, 12207), (6201, 11581)]