20866802

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{9391}}^1$

素因数の和:9505

約数の個数: 16

約数和(自身を含む): 34487424

約数和(自身を除く): 13620622

約数列:

[1, 2, 11, 22, 101, 202, 1111, 2222, 9391, 18782, 103301, 206602, 948491, 1896982, 10433401, 20866802]

約数ペア:

[(1, 20866802), (2, 10433401), (11, 1896982), (22, 948491), (101, 206602), (202, 103301), (1111, 18782), (2222, 9391)]