21145260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{352421}}^1$

素因数の和:352433

約数の個数: 24

約数和(自身を含む): 59206896

約数和(自身を除く): 38061636

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 352421, 704842, 1057263, 1409684, 1762105, 2114526, 3524210, 4229052, 5286315, 7048420, 10572630, 21145260]

約数ペア:

[(1, 21145260), (2, 10572630), (3, 7048420), (4, 5286315), (5, 4229052), (6, 3524210), (10, 2114526), (12, 1762105), (15, 1409684), (20, 1057263), (30, 704842), (60, 352421)]