21580912

素因数分解:

$2^4\times {\mathrm{311}}^1\times {\mathrm{4337}}^1$

素因数の和:4656

約数の個数: 20

約数和(自身を含む): 41957136

約数和(自身を除く): 20376224

約数列:

[1, 2, 4, 8, 16, 311, 622, 1244, 2488, 4337, 4976, 8674, 17348, 34696, 69392, 1348807, 2697614, 5395228, 10790456, 21580912]

約数ペア:

[(1, 21580912), (2, 10790456), (4, 5395228), (8, 2697614), (16, 1348807), (311, 69392), (622, 34696), (1244, 17348), (2488, 8674), (4337, 4976)]