21084104

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{61291}}^1$

素因数の和:61340

約数の個数: 16

約数和(自身を含む): 40452720

約数和(自身を除く): 19368616

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 61291, 122582, 245164, 490328, 2635513, 5271026, 10542052, 21084104]

約数ペア:

[(1, 21084104), (2, 10542052), (4, 5271026), (8, 2635513), (43, 490328), (86, 245164), (172, 122582), (344, 61291)]