21828704540

素因数分解:

$2^2\times 5^1\times {\mathrm{1091435227}}^1$

素因数の和:1091435236

約数の個数: 12

約数和(自身を含む): 45840279576

約数和(自身を除く): 24011575036

約数列:

[1, 2, 4, 5, 10, 20, 1091435227, 2182870454, 4365740908, 5457176135, 10914352270, 21828704540]

約数ペア:

[(1, 21828704540), (2, 10914352270), (4, 5457176135), (5, 4365740908), (10, 2182870454), (20, 1091435227)]