668889351

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{20639}}^1$

素因数の和:20935

約数の個数: 24

約数和(自身を含む): 1044301440

約数和(自身を除く): 375412089

約数列:

[1, 3, 9, 13, 39, 117, 277, 831, 2493, 3601, 10803, 20639, 32409, 61917, 185751, 268307, 804921, 2414763, 5717003, 17151009, 51453027, 74321039, 222963117, 668889351]

約数ペア:

[(1, 668889351), (3, 222963117), (9, 74321039), (13, 51453027), (39, 17151009), (117, 5717003), (277, 2414763), (831, 804921), (2493, 268307), (3601, 185751), (10803, 61917), (20639, 32409)]