21242128

素因数分解:

$2^4\times {\mathrm{353}}^1\times {\mathrm{3761}}^1$

素因数の和:4122

約数の個数: 20

約数和(自身を含む): 41284188

約数和(自身を除く): 20042060

約数列:

[1, 2, 4, 8, 16, 353, 706, 1412, 2824, 3761, 5648, 7522, 15044, 30088, 60176, 1327633, 2655266, 5310532, 10621064, 21242128]

約数ペア:

[(1, 21242128), (2, 10621064), (4, 5310532), (8, 2655266), (16, 1327633), (353, 60176), (706, 30088), (1412, 15044), (2824, 7522), (3761, 5648)]