19770021

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{10313}}^1$

素因数の和:10393

約数の個数: 16

約数和(自身を含む): 29704320

約数和(自身を除く): 9934299

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 10313, 30939, 92817, 278451, 732223, 2196669, 6590007, 19770021]

約数ペア:

[(1, 19770021), (3, 6590007), (9, 2196669), (27, 732223), (71, 278451), (213, 92817), (639, 30939), (1917, 10313)]