20916824

素因数分解:

$2^3\times {\mathrm{277}}^1\times {\mathrm{9439}}^1$

素因数の和:9722

約数の個数: 16

約数和(自身を含む): 39364800

約数和(自身を除く): 18447976

約数列:

[1, 2, 4, 8, 277, 554, 1108, 2216, 9439, 18878, 37756, 75512, 2614603, 5229206, 10458412, 20916824]

約数ペア:

[(1, 20916824), (2, 10458412), (4, 5229206), (8, 2614603), (277, 75512), (554, 37756), (1108, 18878), (2216, 9439)]