19890777

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{2311}}^1$

素因数の和:2484

約数の個数: 16

約数和(自身を含む): 28113920

約数和(自身を除く): 8223143

約数列:

[1, 3, 19, 57, 151, 453, 2311, 2869, 6933, 8607, 43909, 131727, 348961, 1046883, 6630259, 19890777]

約数ペア:

[(1, 19890777), (3, 6630259), (19, 1046883), (57, 348961), (151, 131727), (453, 43909), (2311, 8607), (2869, 6933)]