21105687

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{5669}}^1$

素因数の和:5762

約数の個数: 16

約数和(自身を含む): 30209760

約数和(自身を除く): 9104073

約数列:

[1, 3, 17, 51, 73, 219, 1241, 3723, 5669, 17007, 96373, 289119, 413837, 1241511, 7035229, 21105687]

約数ペア:

[(1, 21105687), (3, 7035229), (17, 1241511), (51, 413837), (73, 289119), (219, 96373), (1241, 17007), (3723, 5669)]