20545904

素因数分解:

$2^4\times {\mathrm{311}}^1\times {\mathrm{4129}}^1$

素因数の和:4448

約数の個数: 20

約数和(自身を含む): 39945360

約数和(自身を除く): 19399456

約数列:

[1, 2, 4, 8, 16, 311, 622, 1244, 2488, 4129, 4976, 8258, 16516, 33032, 66064, 1284119, 2568238, 5136476, 10272952, 20545904]

約数ペア:

[(1, 20545904), (2, 10272952), (4, 5136476), (8, 2568238), (16, 1284119), (311, 66064), (622, 33032), (1244, 16516), (2488, 8258), (4129, 4976)]