20840478

素因数分解:

$2^1\times 3^1\times {\mathrm{73}}^1\times {\mathrm{47581}}^1$

素因数の和:47659

約数の個数: 16

約数和(自身を含む): 42252816

約数和(自身を除く): 21412338

約数列:

[1, 2, 3, 6, 73, 146, 219, 438, 47581, 95162, 142743, 285486, 3473413, 6946826, 10420239, 20840478]

約数ペア:

[(1, 20840478), (2, 10420239), (3, 6946826), (6, 3473413), (73, 285486), (146, 142743), (219, 95162), (438, 47581)]