18945945

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{22159}}^1$

素因数の和:22189

約数の個数: 24

約数和(自身を含む): 34569600

約数和(自身を除く): 15623655

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 22159, 66477, 110795, 199431, 332385, 421021, 997155, 1263063, 2105105, 3789189, 6315315, 18945945]

約数ペア:

[(1, 18945945), (3, 6315315), (5, 3789189), (9, 2105105), (15, 1263063), (19, 997155), (45, 421021), (57, 332385), (95, 199431), (171, 110795), (285, 66477), (855, 22159)]