51181713

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:180

約数の個数: 80

約数和(自身を含む): 91998720

約数和(自身を除く): 40817007

約数列:

[1, 3, 9, 11, 17, 27, 31, 33, 51, 81, 93, 99, 109, 153, 187, 279, 297, 327, 341, 459, 527, 561, 837, 891, 981, 1023, 1199, 1377, 1581, 1683, 1853, 2511, 2943, 3069, 3379, 3597, 4743, 5049, 5559, 5797, 8829, 9207, 10137, 10791, 14229, 15147, 16677, 17391, 20383, 27621, 30411, 32373, 37169, 42687, 50031, 52173, 57443, 61149, 91233, 97119, 111507, 150093, 156519, 172329, 183447, 273699, 334521, 469557, 516987, 550341, 631873, 1003563, 1550961, 1651023, 1895619, 3010689, 4652883, 5686857, 17060571, 51181713]

約数ペア:

[(1, 51181713), (3, 17060571), (9, 5686857), (11, 4652883), (17, 3010689), (27, 1895619), (31, 1651023), (33, 1550961), (51, 1003563), (81, 631873), (93, 550341), (99, 516987), (109, 469557), (153, 334521), (187, 273699), (279, 183447), (297, 172329), (327, 156519), (341, 150093), (459, 111507), (527, 97119), (561, 91233), (837, 61149), (891, 57443), (981, 52173), (1023, 50031), (1199, 42687), (1377, 37169), (1581, 32373), (1683, 30411), (1853, 27621), (2511, 20383), (2943, 17391), (3069, 16677), (3379, 15147), (3597, 14229), (4743, 10791), (5049, 10137), (5559, 9207), (5797, 8829)]