20521816

素因数分解:

$2^3\times 7^1\times {\mathrm{366461}}^1$

素因数の和:366474

約数の個数: 16

約数和(自身を含む): 43975440

約数和(自身を除く): 23453624

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 366461, 732922, 1465844, 2565227, 2931688, 5130454, 10260908, 20521816]

約数ペア:

[(1, 20521816), (2, 10260908), (4, 5130454), (7, 2931688), (8, 2565227), (14, 1465844), (28, 732922), (56, 366461)]