28017981

素因数分解:

$3^4\times {\mathrm{191}}^1\times {\mathrm{1811}}^1$

素因数の和:2014

約数の個数: 20

約数和(自身を含む): 42096384

約数和(自身を除く): 14078403

約数列:

[1, 3, 9, 27, 81, 191, 573, 1719, 1811, 5157, 5433, 15471, 16299, 48897, 146691, 345901, 1037703, 3113109, 9339327, 28017981]

約数ペア:

[(1, 28017981), (3, 9339327), (9, 3113109), (27, 1037703), (81, 345901), (191, 146691), (573, 48897), (1719, 16299), (1811, 15471), (5157, 5433)]