21245884

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{482861}}^1$

素因数の和:482876

約数の個数: 12

約数和(自身を含む): 40560408

約数和(自身を除く): 19314524

約数列:

[1, 2, 4, 11, 22, 44, 482861, 965722, 1931444, 5311471, 10622942, 21245884]

約数ペア:

[(1, 21245884), (2, 10622942), (4, 5311471), (11, 1931444), (22, 965722), (44, 482861)]