19479911

素因数分解:

${\mathrm{11}}^2\times {\mathrm{199}}^1\times {\mathrm{809}}^1$

素因数の和:1030

約数の個数: 12

約数和(自身を含む): 21546000

約数和(自身を除く): 2066089

約数列:

[1, 11, 121, 199, 809, 2189, 8899, 24079, 97889, 160991, 1770901, 19479911]

約数ペア:

[(1, 19479911), (11, 1770901), (121, 160991), (199, 97889), (809, 24079), (2189, 8899)]