19417209

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{21503}}^1$

素因数の和:21556

約数の個数: 16

約数和(自身を含む): 30277632

約数和(自身を除く): 10860423

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 21503, 64509, 150521, 451563, 924629, 2773887, 6472403, 19417209]

約数ペア:

[(1, 19417209), (3, 6472403), (7, 2773887), (21, 924629), (43, 451563), (129, 150521), (301, 64509), (903, 21503)]