57771259

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20479}}^1$

素因数の和:20530

約数の個数: 16

約数和(自身を含む): 73400320

約数和(自身を除く): 15629061

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 20479, 143353, 266227, 634849, 1863589, 4443943, 8253037, 57771259]

約数ペア:

[(1, 57771259), (7, 8253037), (13, 4443943), (31, 1863589), (91, 634849), (217, 266227), (403, 143353), (2821, 20479)]