2781567

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{1451}}^1$

素因数の和:1531

約数の個数: 16

約数和(自身を含む): 4181760

約数和(自身を除く): 1400193

約数列:

[1, 3, 9, 27, 71, 213, 639, 1451, 1917, 4353, 13059, 39177, 103021, 309063, 927189, 2781567]

約数ペア:

[(1, 2781567), (3, 927189), (9, 309063), (27, 103021), (71, 39177), (213, 13059), (639, 4353), (1451, 1917)]