27991383

素因数分解:

$3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{12941}}^1$

素因数の和:13054

約数の個数: 16

約数和(自身を含む): 43070976

約数和(自身を除く): 15079593

約数列:

[1, 3, 7, 21, 103, 309, 721, 2163, 12941, 38823, 90587, 271761, 1332923, 3998769, 9330461, 27991383]

約数ペア:

[(1, 27991383), (3, 9330461), (7, 3998769), (21, 1332923), (103, 271761), (309, 90587), (721, 38823), (2163, 12941)]