20888970488

素因数分解:

$2^3\times {\mathrm{1301}}^1\times {\mathrm{2007011}}^1$

素因数の和:2008318

約数の個数: 16

約数和(自身を含む): 39196944360

約数和(自身を除く): 18307973872

約数列:

[1, 2, 4, 8, 1301, 2602, 5204, 10408, 2007011, 4014022, 8028044, 16056088, 2611121311, 5222242622, 10444485244, 20888970488]

約数ペア:

[(1, 20888970488), (2, 10444485244), (4, 5222242622), (8, 2611121311), (1301, 16056088), (2602, 8028044), (5204, 4014022), (10408, 2007011)]