18965193

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^2\times {\mathrm{263}}^1$

素因数の和:365

約数の個数: 24

約数和(自身を含む): 27986112

約数和(自身を除く): 9020919

約数列:

[1, 3, 13, 39, 43, 129, 263, 559, 789, 1677, 1849, 3419, 5547, 10257, 11309, 24037, 33927, 72111, 147017, 441051, 486287, 1458861, 6321731, 18965193]

約数ペア:

[(1, 18965193), (3, 6321731), (13, 1458861), (39, 486287), (43, 441051), (129, 147017), (263, 72111), (559, 33927), (789, 24037), (1677, 11309), (1849, 10257), (3419, 5547)]