21539728

素因数分解:

$2^4\times 7^1\times {\mathrm{192319}}^1$

素因数の和:192334

約数の個数: 20

約数和(自身を含む): 47695360

約数和(自身を除く): 26155632

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 192319, 384638, 769276, 1346233, 1538552, 2692466, 3077104, 5384932, 10769864, 21539728]

約数ペア:

[(1, 21539728), (2, 10769864), (4, 5384932), (7, 3077104), (8, 2692466), (14, 1538552), (16, 1346233), (28, 769276), (56, 384638), (112, 192319)]