2581137

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{1697}}^1$

素因数の和:1729

約数の個数: 18

約数和(自身を含む): 4039542

約数和(自身を除く): 1458405

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 1697, 5091, 15273, 22061, 66183, 198549, 286793, 860379, 2581137]

約数ペア:

[(1, 2581137), (3, 860379), (9, 286793), (13, 198549), (39, 66183), (117, 22061), (169, 15273), (507, 5091), (1521, 1697)]