21208432

素因数分解:

$2^4\times 7^1\times {\mathrm{189361}}^1$

素因数の和:189376

約数の個数: 20

約数和(自身を含む): 46961776

約数和(自身を除く): 25753344

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 189361, 378722, 757444, 1325527, 1514888, 2651054, 3029776, 5302108, 10604216, 21208432]

約数ペア:

[(1, 21208432), (2, 10604216), (4, 5302108), (7, 3029776), (8, 2651054), (14, 1514888), (16, 1325527), (28, 757444), (56, 378722), (112, 189361)]