291295641

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{487}}^1$

素因数の和:830

約数の個数: 48

約数和(自身を含む): 489116544

約数和(自身を除く): 197820903

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 313, 487, 637, 939, 1461, 1911, 2191, 3409, 4069, 6331, 6573, 10227, 12207, 15337, 18993, 23863, 28483, 44317, 46011, 71589, 85449, 132951, 152431, 199381, 310219, 457293, 598143, 930657, 1067017, 1981603, 3201051, 5944809, 7469119, 13871221, 22407357, 41613663, 97098547, 291295641]

約数ペア:

[(1, 291295641), (3, 97098547), (7, 41613663), (13, 22407357), (21, 13871221), (39, 7469119), (49, 5944809), (91, 3201051), (147, 1981603), (273, 1067017), (313, 930657), (487, 598143), (637, 457293), (939, 310219), (1461, 199381), (1911, 152431), (2191, 132951), (3409, 85449), (4069, 71589), (6331, 46011), (6573, 44317), (10227, 28483), (12207, 23863), (15337, 18993)]