81340281

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{91291}}^1$

素因数の和:91314

約数の個数: 20

約数和(自身を含む): 132555984

約数和(自身を除く): 51215703

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 91291, 273873, 821619, 1004201, 2464857, 3012603, 7394571, 9037809, 27113427, 81340281]

約数ペア:

[(1, 81340281), (3, 27113427), (9, 9037809), (11, 7394571), (27, 3012603), (33, 2464857), (81, 1004201), (99, 821619), (297, 273873), (891, 91291)]