638564274

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{1867147}}^1$

素因数の和:1867174

約数の個数: 24

約数和(自身を含む): 1456375440

約数和(自身を除く): 817811166

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342, 1867147, 3734294, 5601441, 11202882, 16804323, 33608646, 35475793, 70951586, 106427379, 212854758, 319282137, 638564274]

約数ペア:

[(1, 638564274), (2, 319282137), (3, 212854758), (6, 106427379), (9, 70951586), (18, 35475793), (19, 33608646), (38, 16804323), (57, 11202882), (114, 5601441), (171, 3734294), (342, 1867147)]