19219319

素因数分解:

$7^3\times {\mathrm{137}}^1\times {\mathrm{409}}^1$

素因数の和:567

約数の個数: 16

約数和(自身を含む): 22632000

約数和(自身を除く): 3412681

約数列:

[1, 7, 49, 137, 343, 409, 959, 2863, 6713, 20041, 46991, 56033, 140287, 392231, 2745617, 19219319]

約数ペア:

[(1, 19219319), (7, 2745617), (49, 392231), (137, 140287), (343, 56033), (409, 46991), (959, 20041), (2863, 6713)]