18728836

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{21577}}^1$

素因数の和:21619

約数の個数: 24

約数和(自身を含む): 38667776

約数和(自身を除く): 19938940

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 21577, 43154, 86308, 151039, 302078, 604156, 668887, 1337774, 2675548, 4682209, 9364418, 18728836]

約数ペア:

[(1, 18728836), (2, 9364418), (4, 4682209), (7, 2675548), (14, 1337774), (28, 668887), (31, 604156), (62, 302078), (124, 151039), (217, 86308), (434, 43154), (868, 21577)]