20387578

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{2281}}^1$

素因数の和:2433

約数の個数: 16

約数和(自身を含む): 31628520

約数和(自身を除く): 11240942

約数列:

[1, 2, 41, 82, 109, 218, 2281, 4469, 4562, 8938, 93521, 187042, 248629, 497258, 10193789, 20387578]

約数ペア:

[(1, 20387578), (2, 10193789), (41, 497258), (82, 248629), (109, 187042), (218, 93521), (2281, 8938), (4469, 4562)]