28724751

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{15271}}^1$

素因数の和:15307

約数の個数: 24

約数和(自身を含む): 47648640

約数和(自身を除く): 18923889

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 171, 209, 627, 1881, 15271, 45813, 137439, 167981, 290149, 503943, 870447, 1511829, 2611341, 3191639, 9574917, 28724751]

約数ペア:

[(1, 28724751), (3, 9574917), (9, 3191639), (11, 2611341), (19, 1511829), (33, 870447), (57, 503943), (99, 290149), (171, 167981), (209, 137439), (627, 45813), (1881, 15271)]