18991294

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{31547}}^1$

素因数の和:31599

約数の個数: 16

約数和(自身を含む): 33314688

約数和(自身を除く): 14323394

約数列:

[1, 2, 7, 14, 43, 86, 301, 602, 31547, 63094, 220829, 441658, 1356521, 2713042, 9495647, 18991294]

約数ペア:

[(1, 18991294), (2, 9495647), (7, 2713042), (14, 1356521), (43, 441658), (86, 220829), (301, 63094), (602, 31547)]