287221431

素因数分解:

$3^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1\times {\mathrm{701}}^1$

素因数の和:999

約数の個数: 32

約数和(自身を含む): 444787200

約数和(自身を除く): 157565769

約数列:

[1, 3, 7, 21, 109, 179, 327, 537, 701, 763, 1253, 2103, 2289, 3759, 4907, 14721, 19511, 58533, 76409, 125479, 136577, 229227, 376437, 409731, 534863, 878353, 1604589, 2635059, 13677211, 41031633, 95740477, 287221431]

約数ペア:

[(1, 287221431), (3, 95740477), (7, 41031633), (21, 13677211), (109, 2635059), (179, 1604589), (327, 878353), (537, 534863), (701, 409731), (763, 376437), (1253, 229227), (2103, 136577), (2289, 125479), (3759, 76409), (4907, 58533), (14721, 19511)]