20719916

素因数分解:

$2^2\times 7^1\times {\mathrm{433}}^1\times {\mathrm{1709}}^1$

素因数の和:2153

約数の個数: 24

約数和(自身を含む): 41559840

約数和(自身を除く): 20839924

約数列:

[1, 2, 4, 7, 14, 28, 433, 866, 1709, 1732, 3031, 3418, 6062, 6836, 11963, 12124, 23926, 47852, 739997, 1479994, 2959988, 5179979, 10359958, 20719916]

約数ペア:

[(1, 20719916), (2, 10359958), (4, 5179979), (7, 2959988), (14, 1479994), (28, 739997), (433, 47852), (866, 23926), (1709, 12124), (1732, 11963), (3031, 6836), (3418, 6062)]