19690173

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{613}}^1$

素因数の和:745

約数の個数: 24

約数和(自身を含む): 29501472

約数和(自身を除く): 9811299

約数列:

[1, 3, 9, 43, 83, 129, 249, 387, 613, 747, 1839, 3569, 5517, 10707, 26359, 32121, 50879, 79077, 152637, 237231, 457911, 2187797, 6563391, 19690173]

約数ペア:

[(1, 19690173), (3, 6563391), (9, 2187797), (43, 457911), (83, 237231), (129, 152637), (249, 79077), (387, 50879), (613, 32121), (747, 26359), (1839, 10707), (3569, 5517)]