720291339

素因数分解:

$3^3\times {\mathrm{67}}^1\times {\mathrm{398171}}^1$

素因数の和:398247

約数の個数: 16

約数和(自身を含む): 1083027840

約数和(自身を除く): 362736501

約数列:

[1, 3, 9, 27, 67, 201, 603, 1809, 398171, 1194513, 3583539, 10750617, 26677457, 80032371, 240097113, 720291339]

約数ペア:

[(1, 720291339), (3, 240097113), (9, 80032371), (27, 26677457), (67, 10750617), (201, 3583539), (603, 1194513), (1809, 398171)]