21064912

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{119687}}^1$

素因数の和:119706

約数の個数: 20

約数和(自身を含む): 44523936

約数和(自身を除く): 23459024

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 119687, 239374, 478748, 957496, 1316557, 1914992, 2633114, 5266228, 10532456, 21064912]

約数ペア:

[(1, 21064912), (2, 10532456), (4, 5266228), (8, 2633114), (11, 1914992), (16, 1316557), (22, 957496), (44, 478748), (88, 239374), (176, 119687)]