255996819

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{30817}}^1$

素因数の和:30907

約数の個数: 24

約数和(自身を含む): 403839072

約数和(自身を除く): 147842253

約数列:

[1, 3, 9, 13, 39, 71, 117, 213, 639, 923, 2769, 8307, 30817, 92451, 277353, 400621, 1201863, 2188007, 3605589, 6564021, 19692063, 28444091, 85332273, 255996819]

約数ペア:

[(1, 255996819), (3, 85332273), (9, 28444091), (13, 19692063), (39, 6564021), (71, 3605589), (117, 2188007), (213, 1201863), (639, 400621), (923, 277353), (2769, 92451), (8307, 30817)]