71287749

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{919}}^1$

素因数の和:971

約数の個数: 48

約数和(自身を含む): 121219200

約数和(自身を除く): 49931451

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 117, 153, 169, 221, 351, 459, 507, 663, 919, 1521, 1989, 2757, 2873, 4563, 5967, 8271, 8619, 11947, 15623, 24813, 25857, 35841, 46869, 77571, 107523, 140607, 155311, 203099, 322569, 421821, 465933, 609297, 1397799, 1827891, 2640287, 4193397, 5483673, 7920861, 23762583, 71287749]

約数ペア:

[(1, 71287749), (3, 23762583), (9, 7920861), (13, 5483673), (17, 4193397), (27, 2640287), (39, 1827891), (51, 1397799), (117, 609297), (153, 465933), (169, 421821), (221, 322569), (351, 203099), (459, 155311), (507, 140607), (663, 107523), (919, 77571), (1521, 46869), (1989, 35841), (2757, 25857), (2873, 24813), (4563, 15623), (5967, 11947), (8271, 8619)]