20864991

素因数分解:

$3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{10243}}^1$

素因数の和:10350

約数の個数: 16

約数和(自身を含む): 32125184

約数和(自身を除く): 11260193

約数列:

[1, 3, 7, 21, 97, 291, 679, 2037, 10243, 30729, 71701, 215103, 993571, 2980713, 6954997, 20864991]

約数ペア:

[(1, 20864991), (3, 6954997), (7, 2980713), (21, 993571), (97, 215103), (291, 71701), (679, 30729), (2037, 10243)]