81808983

素因数分解:

$3^2\times {\mathrm{73}}^1\times {\mathrm{239}}^1\times {\mathrm{521}}^1$

素因数の和:839

約数の個数: 24

約数和(自身を含む): 120519360

約数和(自身を除く): 38710377

約数列:

[1, 3, 9, 73, 219, 239, 521, 657, 717, 1563, 2151, 4689, 17447, 38033, 52341, 114099, 124519, 157023, 342297, 373557, 1120671, 9089887, 27269661, 81808983]

約数ペア:

[(1, 81808983), (3, 27269661), (9, 9089887), (73, 1120671), (219, 373557), (239, 342297), (521, 157023), (657, 124519), (717, 114099), (1563, 52341), (2151, 38033), (4689, 17447)]