447494139

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{82457}}^1$

素因数の和:82536

約数の個数: 20

約数和(自身を含む): 678464424

約数和(自身を除く): 230970285

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 5427, 82457, 247371, 742113, 2226339, 5524619, 6679017, 16573857, 49721571, 149164713, 447494139]

約数ペア:

[(1, 447494139), (3, 149164713), (9, 49721571), (27, 16573857), (67, 6679017), (81, 5524619), (201, 2226339), (603, 742113), (1809, 247371), (5427, 82457)]