21919508

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{9803}}^1$

素因数の和:9863

約数の個数: 24

約数和(自身を含む): 42274848

約数和(自身を除く): 20355340

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 172, 559, 1118, 2236, 9803, 19606, 39212, 127439, 254878, 421529, 509756, 843058, 1686116, 5479877, 10959754, 21919508]

約数ペア:

[(1, 21919508), (2, 10959754), (4, 5479877), (13, 1686116), (26, 843058), (43, 509756), (52, 421529), (86, 254878), (172, 127439), (559, 39212), (1118, 19606), (2236, 9803)]