18947733

素因数分解:

$3^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{2939}}^1$

素因数の和:3256

約数の個数: 16

約数和(自身を含む): 28976640

約数和(自身を除く): 10028907

約数列:

[1, 3, 7, 21, 307, 921, 2149, 2939, 6447, 8817, 20573, 61719, 902273, 2706819, 6315911, 18947733]

約数ペア:

[(1, 18947733), (3, 6315911), (7, 2706819), (21, 902273), (307, 61719), (921, 20573), (2149, 8817), (2939, 6447)]