19512218

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{80629}}^1$

素因数の和:80653

約数の個数: 12

約数和(自身を含む): 32171370

約数和(自身を除く): 12659152

約数列:

[1, 2, 11, 22, 121, 242, 80629, 161258, 886919, 1773838, 9756109, 19512218]

約数ペア:

[(1, 19512218), (2, 9756109), (11, 1773838), (22, 886919), (121, 161258), (242, 80629)]