19698128

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{28631}}^1$

素因数の和:28682

約数の個数: 20

約数和(自身を含む): 39054048

約数和(自身を除く): 19355920

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 28631, 57262, 114524, 229048, 458096, 1231133, 2462266, 4924532, 9849064, 19698128]

約数ペア:

[(1, 19698128), (2, 9849064), (4, 4924532), (8, 2462266), (16, 1231133), (43, 458096), (86, 229048), (172, 114524), (344, 57262), (688, 28631)]