19010128

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{27631}}^1$

素因数の和:27682

約数の個数: 20

約数和(自身を含む): 37690048

約数和(自身を除く): 18679920

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 27631, 55262, 110524, 221048, 442096, 1188133, 2376266, 4752532, 9505064, 19010128]

約数ペア:

[(1, 19010128), (2, 9505064), (4, 4752532), (8, 2376266), (16, 1188133), (43, 442096), (86, 221048), (172, 110524), (344, 55262), (688, 27631)]