21324904

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{61991}}^1$

素因数の和:62040

約数の個数: 16

約数和(自身を含む): 40914720

約数和(自身を除く): 19589816

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 61991, 123982, 247964, 495928, 2665613, 5331226, 10662452, 21324904]

約数ペア:

[(1, 21324904), (2, 10662452), (4, 5331226), (8, 2665613), (43, 495928), (86, 247964), (172, 123982), (344, 61991)]