2189098010

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19900891}}^1$

素因数の和:19900909

約数の個数: 16

約数和(自身を含む): 4298592672

約数和(自身を除く): 2109494662

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 19900891, 39801782, 99504455, 199008910, 218909801, 437819602, 1094549005, 2189098010]

約数ペア:

[(1, 2189098010), (2, 1094549005), (5, 437819602), (10, 218909801), (11, 199008910), (22, 99504455), (55, 39801782), (110, 19900891)]