19688278

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{359}}^1\times {\mathrm{1613}}^1$

素因数の和:1991

約数の個数: 16

約数和(自身を含む): 31376160

約数和(自身を除く): 11687882

約数列:

[1, 2, 17, 34, 359, 718, 1613, 3226, 6103, 12206, 27421, 54842, 579067, 1158134, 9844139, 19688278]

約数ペア:

[(1, 19688278), (2, 9844139), (17, 1158134), (34, 579067), (359, 54842), (718, 27421), (1613, 12206), (3226, 6103)]