87078131

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{19777}}^1$

素因数の和:19838

約数の個数: 16

約数和(自身を含む): 108225216

約数和(自身を除く): 21147085

約数列:

[1, 7, 17, 37, 119, 259, 629, 4403, 19777, 138439, 336209, 731749, 2353463, 5122243, 12439733, 87078131]

約数ペア:

[(1, 87078131), (7, 12439733), (17, 5122243), (37, 2353463), (119, 731749), (259, 336209), (629, 138439), (4403, 19777)]