28326981

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{12917}}^1$

素因数の和:12980

約数の個数: 16

約数和(自身を含む): 40924224

約数和(自身を除く): 12597243

約数列:

[1, 3, 17, 43, 51, 129, 731, 2193, 12917, 38751, 219589, 555431, 658767, 1666293, 9442327, 28326981]

約数ペア:

[(1, 28326981), (3, 9442327), (17, 1666293), (43, 658767), (51, 555431), (129, 219589), (731, 38751), (2193, 12917)]