20839569

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1\times {\mathrm{1019}}^1$

素因数の和:1440

約数の個数: 16

約数和(自身を含む): 29522880

約数和(自身を除く): 8683311

約数列:

[1, 3, 17, 51, 401, 1019, 1203, 3057, 6817, 17323, 20451, 51969, 408619, 1225857, 6946523, 20839569]

約数ペア:

[(1, 20839569), (3, 6946523), (17, 1225857), (51, 408619), (401, 51969), (1019, 20451), (1203, 17323), (3057, 6817)]