20381648

素因数分解:

$2^4\times 7^2\times {\mathrm{25997}}^1$

素因数の和:26019

約数の個数: 30

約数和(自身を含む): 45938466

約数和(自身を除く): 25556818

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 25997, 51994, 103988, 181979, 207976, 363958, 415952, 727916, 1273853, 1455832, 2547706, 2911664, 5095412, 10190824, 20381648]

約数ペア:

[(1, 20381648), (2, 10190824), (4, 5095412), (7, 2911664), (8, 2547706), (14, 1455832), (16, 1273853), (28, 727916), (49, 415952), (56, 363958), (98, 207976), (112, 181979), (196, 103988), (392, 51994), (784, 25997)]