20711896

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{60209}}^1$

素因数の和:60258

約数の個数: 16

約数和(自身を含む): 39738600

約数和(自身を除く): 19026704

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 60209, 120418, 240836, 481672, 2588987, 5177974, 10355948, 20711896]

約数ペア:

[(1, 20711896), (2, 10355948), (4, 5177974), (8, 2588987), (43, 481672), (86, 240836), (172, 120418), (344, 60209)]