20889748

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{2129}}^1$

素因数の和:2367

約数の個数: 24

約数和(自身を含む): 40078080

約数和(自身を除く): 19188332

約数列:

[1, 2, 4, 11, 22, 44, 223, 446, 892, 2129, 2453, 4258, 4906, 8516, 9812, 23419, 46838, 93676, 474767, 949534, 1899068, 5222437, 10444874, 20889748]

約数ペア:

[(1, 20889748), (2, 10444874), (4, 5222437), (11, 1899068), (22, 949534), (44, 474767), (223, 93676), (446, 46838), (892, 23419), (2129, 9812), (2453, 8516), (4258, 4906)]