2181105

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2551}}^1$

素因数の和:2581

約数の個数: 24

約数和(自身を含む): 3981120

約数和(自身を除く): 1800015

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 2551, 7653, 12755, 22959, 38265, 48469, 114795, 145407, 242345, 436221, 727035, 2181105]

約数ペア:

[(1, 2181105), (3, 727035), (5, 436221), (9, 242345), (15, 145407), (19, 114795), (45, 48469), (57, 38265), (95, 22959), (171, 12755), (285, 7653), (855, 2551)]