21047824

素因数分解:

$2^4\times 7^1\times {\mathrm{187927}}^1$

素因数の和:187942

約数の個数: 20

約数和(自身を含む): 46606144

約数和(自身を除く): 25558320

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 187927, 375854, 751708, 1315489, 1503416, 2630978, 3006832, 5261956, 10523912, 21047824]

約数ペア:

[(1, 21047824), (2, 10523912), (4, 5261956), (7, 3006832), (8, 2630978), (14, 1503416), (16, 1315489), (28, 751708), (56, 375854), (112, 187927)]