20706818

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{9319}}^1$

素因数の和:9433

約数の個数: 16

約数和(自身を含む): 34223040

約数和(自身を除く): 13516222

約数列:

[1, 2, 11, 22, 101, 202, 1111, 2222, 9319, 18638, 102509, 205018, 941219, 1882438, 10353409, 20706818]

約数ペア:

[(1, 20706818), (2, 10353409), (11, 1882438), (22, 941219), (101, 205018), (202, 102509), (1111, 18638), (2222, 9319)]