21082881

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{5009}}^1$

素因数の和:5096

約数の個数: 16

約数和(自身を含む): 29819520

約数和(自身を除く): 8736639

約数列:

[1, 3, 23, 61, 69, 183, 1403, 4209, 5009, 15027, 115207, 305549, 345621, 916647, 7027627, 21082881]

約数ペア:

[(1, 21082881), (3, 7027627), (23, 916647), (61, 345621), (69, 305549), (183, 115207), (1403, 15027), (4209, 5009)]