13087865

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{19681}}^1$

素因数の和:19712

約数の個数: 16

約数和(自身を含む): 18894720

約数和(自身を除く): 5806855

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 19681, 98405, 137767, 373939, 688835, 1869695, 2617573, 13087865]

約数ペア:

[(1, 13087865), (5, 2617573), (7, 1869695), (19, 688835), (35, 373939), (95, 137767), (133, 98405), (665, 19681)]