20656468

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{25439}}^1$

素因数の和:25479

約数の個数: 24

約数和(自身を含む): 42739200

約数和(自身を除く): 22082732

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, 812, 25439, 50878, 101756, 178073, 356146, 712292, 737731, 1475462, 2950924, 5164117, 10328234, 20656468]

約数ペア:

[(1, 20656468), (2, 10328234), (4, 5164117), (7, 2950924), (14, 1475462), (28, 737731), (29, 712292), (58, 356146), (116, 178073), (203, 101756), (406, 50878), (812, 25439)]