8381009

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{223}}^1$

素因数の和:309

約数の個数: 24

約数和(自身を含む): 10725120

約数和(自身を除く): 2344111

約数列:

[1, 7, 13, 49, 59, 91, 223, 413, 637, 767, 1561, 2891, 2899, 5369, 10927, 13157, 20293, 37583, 92099, 142051, 171041, 644693, 1197287, 8381009]

約数ペア:

[(1, 8381009), (7, 1197287), (13, 644693), (49, 171041), (59, 142051), (91, 92099), (223, 37583), (413, 20293), (637, 13157), (767, 10927), (1561, 5369), (2891, 2899)]