19561644

素因数分解:

$2^2\times 3^2\times {\mathrm{543379}}^1$

素因数の和:543389

約数の個数: 18

約数和(自身を含む): 49447580

約数和(自身を除く): 29885936

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 543379, 1086758, 1630137, 2173516, 3260274, 4890411, 6520548, 9780822, 19561644]

約数ペア:

[(1, 19561644), (2, 9780822), (3, 6520548), (4, 4890411), (6, 3260274), (9, 2173516), (12, 1630137), (18, 1086758), (36, 543379)]