672253839

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{206911}}^1$

素因数の和:206955

約数の個数: 18

約数和(自身を含む): 1024835136

約数和(自身を除く): 352581297

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 206911, 620733, 1862199, 3931309, 11793927, 35381781, 74694871, 224084613, 672253839]

約数ペア:

[(1, 672253839), (3, 224084613), (9, 74694871), (19, 35381781), (57, 11793927), (171, 3931309), (361, 1862199), (1083, 620733), (3249, 206911)]