20931208

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{33119}}^1$

素因数の和:33204

約数の個数: 16

約数和(自身を含む): 39744000

約数和(自身を除く): 18812792

約数列:

[1, 2, 4, 8, 79, 158, 316, 632, 33119, 66238, 132476, 264952, 2616401, 5232802, 10465604, 20931208]

約数ペア:

[(1, 20931208), (2, 10465604), (4, 5232802), (8, 2616401), (79, 264952), (158, 132476), (316, 66238), (632, 33119)]