19813644

素因数分解:

$2^2\times 3^2\times {\mathrm{550379}}^1$

素因数の和:550389

約数の個数: 18

約数和(自身を含む): 50084580

約数和(自身を除く): 30270936

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 550379, 1100758, 1651137, 2201516, 3302274, 4953411, 6604548, 9906822, 19813644]

約数ペア:

[(1, 19813644), (2, 9906822), (3, 6604548), (4, 4953411), (6, 3302274), (9, 2201516), (12, 1651137), (18, 1100758), (36, 550379)]