19539331

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{709}}^1$

素因数の和:874

約数の個数: 16

約数和(自身を含む): 23265280

約数和(自身を除く): 3725949

約数列:

[1, 7, 31, 127, 217, 709, 889, 3937, 4963, 21979, 27559, 90043, 153853, 630301, 2791333, 19539331]

約数ペア:

[(1, 19539331), (7, 2791333), (31, 630301), (127, 153853), (217, 90043), (709, 27559), (889, 21979), (3937, 4963)]