80898021

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{26993}}^1$

素因数の和:27042

約数の個数: 20

約数和(自身を含む): 124118412

約数和(自身を除く): 43220391

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 999, 2997, 26993, 80979, 242937, 728811, 998741, 2186433, 2996223, 8988669, 26966007, 80898021]

約数ペア:

[(1, 80898021), (3, 26966007), (9, 8988669), (27, 2996223), (37, 2186433), (81, 998741), (111, 728811), (333, 242937), (999, 80979), (2997, 26993)]