2989259

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{307}}^1$

素因数の和:434

約数の個数: 16

約数和(自身を含む): 3725568

約数和(自身を除く): 736309

約数列:

[1, 7, 13, 91, 107, 307, 749, 1391, 2149, 3991, 9737, 27937, 32849, 229943, 427037, 2989259]

約数ペア:

[(1, 2989259), (7, 427037), (13, 229943), (91, 32849), (107, 27937), (307, 9737), (749, 3991), (1391, 2149)]