21180676

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{481379}}^1$

素因数の和:481394

約数の個数: 12

約数和(自身を含む): 40435920

約数和(自身を除く): 19255244

約数列:

[1, 2, 4, 11, 22, 44, 481379, 962758, 1925516, 5295169, 10590338, 21180676]

約数ペア:

[(1, 21180676), (2, 10590338), (4, 5295169), (11, 1925516), (22, 962758), (44, 481379)]