18720904

素因数分解:

$2^3\times {\mathrm{1093}}^1\times {\mathrm{2141}}^1$

素因数の和:3240

約数の個数: 16

約数和(自身を含む): 35150220

約数和(自身を除く): 16429316

約数列:

[1, 2, 4, 8, 1093, 2141, 2186, 4282, 4372, 8564, 8744, 17128, 2340113, 4680226, 9360452, 18720904]

約数ペア:

[(1, 18720904), (2, 9360452), (4, 4680226), (8, 2340113), (1093, 17128), (2141, 8744), (2186, 8564), (4282, 4372)]