51317091

素因数分解:

$3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 91238400

約数和(自身を除く): 39921309

約数列:

[1, 3, 7, 9, 21, 27, 47, 53, 63, 109, 141, 159, 189, 327, 329, 371, 423, 477, 763, 981, 987, 1113, 1269, 1431, 2289, 2491, 2943, 2961, 3339, 5123, 5777, 6867, 7473, 8883, 10017, 15369, 17331, 17437, 20601, 22419, 35861, 40439, 46107, 51993, 52311, 67257, 107583, 121317, 138321, 155979, 156933, 271519, 322749, 363951, 470799, 814557, 968247, 1091853, 1900633, 2443671, 5701899, 7331013, 17105697, 51317091]

約数ペア:

[(1, 51317091), (3, 17105697), (7, 7331013), (9, 5701899), (21, 2443671), (27, 1900633), (47, 1091853), (53, 968247), (63, 814557), (109, 470799), (141, 363951), (159, 322749), (189, 271519), (327, 156933), (329, 155979), (371, 138321), (423, 121317), (477, 107583), (763, 67257), (981, 52311), (987, 51993), (1113, 46107), (1269, 40439), (1431, 35861), (2289, 22419), (2491, 20601), (2943, 17437), (2961, 17331), (3339, 15369), (5123, 10017), (5777, 8883), (6867, 7473)]