218865889

素因数分解:

${\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{17909}}^1$

素因数の和:18032

約数の個数: 12

約数和(自身を含む): 242967060

約数和(自身を除く): 24101171

約数列:

[1, 11, 101, 121, 1111, 12221, 17909, 196999, 1808809, 2166989, 19896899, 218865889]

約数ペア:

[(1, 218865889), (11, 19896899), (101, 2166989), (121, 1808809), (1111, 196999), (12221, 17909)]