19945947

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{55871}}^1$

素因数の和:55898

約数の個数: 16

約数和(自身を含む): 32182272

約数和(自身を除く): 12236325

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 55871, 167613, 391097, 949807, 1173291, 2849421, 6648649, 19945947]

約数ペア:

[(1, 19945947), (3, 6648649), (7, 2849421), (17, 1173291), (21, 949807), (51, 391097), (119, 167613), (357, 55871)]