21595977

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{20509}}^1$

素因数の和:20534

約数の個数: 20

約数和(自身を含む): 34743940

約数和(自身を除く): 13147963

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 20509, 61527, 184581, 266617, 553743, 799851, 1661229, 2399553, 7198659, 21595977]

約数ペア:

[(1, 21595977), (3, 7198659), (9, 2399553), (13, 1661229), (27, 799851), (39, 553743), (81, 266617), (117, 184581), (351, 61527), (1053, 20509)]