163215729

素因数分解:

$3^4\times {\mathrm{239}}^1\times {\mathrm{8431}}^1$

素因数の和:8682

約数の個数: 20

約数和(自身を含む): 244865280

約数和(自身を除く): 81649551

約数列:

[1, 3, 9, 27, 81, 239, 717, 2151, 6453, 8431, 19359, 25293, 75879, 227637, 682911, 2015009, 6045027, 18135081, 54405243, 163215729]

約数ペア:

[(1, 163215729), (3, 54405243), (9, 18135081), (27, 6045027), (81, 2015009), (239, 682911), (717, 227637), (2151, 75879), (6453, 25293), (8431, 19359)]