19947039

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{14177}}^1$

素因数の和:14254

約数の個数: 16

約数和(自身を含む): 30851328

約数和(自身を除く): 10904289

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 14177, 42531, 99239, 297717, 949859, 2849577, 6649013, 19947039]

約数ペア:

[(1, 19947039), (3, 6649013), (7, 2849577), (21, 949859), (67, 297717), (201, 99239), (469, 42531), (1407, 14177)]