16918056009

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{43}}^3\times {\mathrm{71}}^1$

素因数の和:249

約数の個数: 80

約数和(自身を含む): 26947958400

約数和(自身を除く): 10029902391

約数列:

[1, 3, 9, 27, 37, 43, 71, 81, 111, 129, 213, 333, 387, 639, 999, 1161, 1591, 1849, 1917, 2627, 2997, 3053, 3483, 4773, 5547, 5751, 7881, 9159, 14319, 16641, 23643, 27477, 42957, 49923, 68413, 70929, 79507, 82431, 112961, 128871, 131279, 149769, 205239, 212787, 238521, 247293, 338883, 393837, 615717, 715563, 1016649, 1181511, 1847151, 2146689, 2941759, 3049947, 3544533, 4857323, 5541453, 5644997, 6440067, 8825277, 9149841, 10633599, 14571969, 16934991, 26475831, 43715907, 50804973, 79427493, 131147721, 152414919, 208864889, 238282479, 393443163, 457244757, 626594667, 1879784001, 5639352003, 16918056009]

約数ペア:

[(1, 16918056009), (3, 5639352003), (9, 1879784001), (27, 626594667), (37, 457244757), (43, 393443163), (71, 238282479), (81, 208864889), (111, 152414919), (129, 131147721), (213, 79427493), (333, 50804973), (387, 43715907), (639, 26475831), (999, 16934991), (1161, 14571969), (1591, 10633599), (1849, 9149841), (1917, 8825277), (2627, 6440067), (2997, 5644997), (3053, 5541453), (3483, 4857323), (4773, 3544533), (5547, 3049947), (5751, 2941759), (7881, 2146689), (9159, 1847151), (14319, 1181511), (16641, 1016649), (23643, 715563), (27477, 615717), (42957, 393837), (49923, 338883), (68413, 247293), (70929, 238521), (79507, 212787), (82431, 205239), (112961, 149769), (128871, 131279)]