19890992

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{113017}}^1$

素因数の和:113036

約数の個数: 20

約数和(自身を含む): 42042696

約数和(自身を除く): 22151704

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 113017, 226034, 452068, 904136, 1243187, 1808272, 2486374, 4972748, 9945496, 19890992]

約数ペア:

[(1, 19890992), (2, 9945496), (4, 4972748), (8, 2486374), (11, 1808272), (16, 1243187), (22, 904136), (44, 452068), (88, 226034), (176, 113017)]