20425509

素因数分解:

$3^2\times {\mathrm{13}}^3\times {\mathrm{1033}}^1$

素因数の和:1078

約数の個数: 24

約数和(自身を含む): 31991960

約数和(自身を除く): 11566451

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1033, 1521, 2197, 3099, 6591, 9297, 13429, 19773, 40287, 120861, 174577, 523731, 1571193, 2269501, 6808503, 20425509]

約数ペア:

[(1, 20425509), (3, 6808503), (9, 2269501), (13, 1571193), (39, 523731), (117, 174577), (169, 120861), (507, 40287), (1033, 19773), (1521, 13429), (2197, 9297), (3099, 6591)]