257637861

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{4861}}^1$

素因数の和:5034

約数の個数: 32

約数和(自身を含む): 413853440

約数和(自身を除く): 156215579

約数列:

[1, 3, 9, 13, 27, 39, 117, 151, 351, 453, 1359, 1963, 4077, 4861, 5889, 14583, 17667, 43749, 53001, 63193, 131247, 189579, 568737, 734011, 1706211, 2202033, 6606099, 9542143, 19818297, 28626429, 85879287, 257637861]

約数ペア:

[(1, 257637861), (3, 85879287), (9, 28626429), (13, 19818297), (27, 9542143), (39, 6606099), (117, 2202033), (151, 1706211), (351, 734011), (453, 568737), (1359, 189579), (1963, 131247), (4077, 63193), (4861, 53001), (5889, 43749), (14583, 17667)]