20947604

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{2879}}^1$

素因数の和:3007

約数の個数: 24

約数和(自身を含む): 39191040

約数和(自身を除く): 18243436

約数列:

[1, 2, 4, 17, 34, 68, 107, 214, 428, 1819, 2879, 3638, 5758, 7276, 11516, 48943, 97886, 195772, 308053, 616106, 1232212, 5236901, 10473802, 20947604]

約数ペア:

[(1, 20947604), (2, 10473802), (4, 5236901), (17, 1232212), (34, 616106), (68, 308053), (107, 195772), (214, 97886), (428, 48943), (1819, 11516), (2879, 7276), (3638, 5758)]