18940149

素因数分解:

$3^6\times {\mathrm{25981}}^1$

素因数の和:25999

約数の個数: 14

約数和(自身を含む): 28398326

約数和(自身を除く): 9458177

約数列:

[1, 3, 9, 27, 81, 243, 729, 25981, 77943, 233829, 701487, 2104461, 6313383, 18940149]

約数ペア:

[(1, 18940149), (3, 6313383), (9, 2104461), (27, 701487), (81, 233829), (243, 77943), (729, 25981)]