20486708

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{353}}^1\times {\mathrm{1319}}^1$

素因数の和:1687

約数の個数: 24

約数和(自身を含む): 39251520

約数和(自身を除く): 18764812

約数列:

[1, 2, 4, 11, 22, 44, 353, 706, 1319, 1412, 2638, 3883, 5276, 7766, 14509, 15532, 29018, 58036, 465607, 931214, 1862428, 5121677, 10243354, 20486708]

約数ペア:

[(1, 20486708), (2, 10243354), (4, 5121677), (11, 1862428), (22, 931214), (44, 465607), (353, 58036), (706, 29018), (1319, 15532), (1412, 14509), (2638, 7766), (3883, 5276)]