811863

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{257}}^1$

素因数の和:285

約数の個数: 24

約数和(自身を含む): 1314768

約数和(自身を除く): 502905

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 257, 351, 771, 1053, 2313, 3159, 3341, 6939, 10023, 20817, 30069, 62451, 90207, 270621, 811863]

約数ペア:

[(1, 811863), (3, 270621), (9, 90207), (13, 62451), (27, 30069), (39, 20817), (81, 10023), (117, 6939), (243, 3341), (257, 3159), (351, 2313), (771, 1053)]