389631951

素因数分解:

$3^4\times {\mathrm{1657}}^1\times {\mathrm{2903}}^1$

素因数の和:4572

約数の個数: 20

約数和(自身を含む): 582594672

約数和(自身を除く): 192962721

約数列:

[1, 3, 9, 27, 81, 1657, 2903, 4971, 8709, 14913, 26127, 44739, 78381, 134217, 235143, 4810271, 14430813, 43292439, 129877317, 389631951]

約数ペア:

[(1, 389631951), (3, 129877317), (9, 43292439), (27, 14430813), (81, 4810271), (1657, 235143), (2903, 134217), (4971, 78381), (8709, 44739), (14913, 26127)]