81567

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{53}}^1$

素因数の和:84

約数の個数: 20

約数和(自身を含む): 130680

約数和(自身を除く): 49113

約数列:

[1, 3, 9, 19, 27, 53, 57, 81, 159, 171, 477, 513, 1007, 1431, 1539, 3021, 4293, 9063, 27189, 81567]

約数ペア:

[(1, 81567), (3, 27189), (9, 9063), (19, 4293), (27, 3021), (53, 1539), (57, 1431), (81, 1007), (159, 513), (171, 477)]