81978831

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{1091}}^1$

素因数の和:1145

約数の個数: 48

約数和(自身を含む): 139426560

約数和(自身を除く): 57447729

約数列:

[1, 3, 9, 11, 23, 27, 33, 69, 99, 121, 207, 253, 297, 363, 621, 759, 1089, 1091, 2277, 2783, 3267, 3273, 6831, 8349, 9819, 12001, 25047, 25093, 29457, 36003, 75141, 75279, 108009, 132011, 225837, 276023, 324027, 396033, 677511, 828069, 1188099, 2484207, 3036253, 3564297, 7452621, 9108759, 27326277, 81978831]

約数ペア:

[(1, 81978831), (3, 27326277), (9, 9108759), (11, 7452621), (23, 3564297), (27, 3036253), (33, 2484207), (69, 1188099), (99, 828069), (121, 677511), (207, 396033), (253, 324027), (297, 276023), (363, 225837), (621, 132011), (759, 108009), (1089, 75279), (1091, 75141), (2277, 36003), (2783, 29457), (3267, 25093), (3273, 25047), (6831, 12001), (8349, 9819)]