19980079

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{1619}}^1$

素因数の和:1710

約数の個数: 16

約数和(自身を含む): 23950080

約数和(自身を除く): 3970001

約数列:

[1, 7, 41, 43, 287, 301, 1619, 1763, 11333, 12341, 66379, 69617, 464653, 487319, 2854297, 19980079]

約数ペア:

[(1, 19980079), (7, 2854297), (41, 487319), (43, 464653), (287, 69617), (301, 66379), (1619, 12341), (1763, 11333)]