19438257909

素因数分解:

$3^1\times 7^2\times {\mathrm{132233047}}^1$

素因数の和:132233064

約数の個数: 12

約数和(自身を含む): 30149134944

約数和(自身を除く): 10710877035

約数列:

[1, 3, 7, 21, 49, 147, 132233047, 396699141, 925631329, 2776893987, 6479419303, 19438257909]

約数ペア:

[(1, 19438257909), (3, 6479419303), (7, 2776893987), (21, 925631329), (49, 396699141), (147, 132233047)]