257319027

素因数分解:

$3^2\times 7^1\times {\mathrm{1933}}^1\times {\mathrm{2113}}^1$

素因数の和:4059

約数の個数: 24

約数和(自身を含む): 425201504

約数和(自身を除く): 167882477

約数列:

[1, 3, 7, 9, 21, 63, 1933, 2113, 5799, 6339, 13531, 14791, 17397, 19017, 40593, 44373, 121779, 133119, 4084429, 12253287, 28591003, 36759861, 85773009, 257319027]

約数ペア:

[(1, 257319027), (3, 85773009), (7, 36759861), (9, 28591003), (21, 12253287), (63, 4084429), (1933, 133119), (2113, 121779), (5799, 44373), (6339, 40593), (13531, 19017), (14791, 17397)]