21585309

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{1811}}^1$

素因数の和:1980

約数の個数: 16

約数和(自身を含む): 30006720

約数和(自身を除く): 8421411

約数列:

[1, 3, 29, 87, 137, 411, 1811, 3973, 5433, 11919, 52519, 157557, 248107, 744321, 7195103, 21585309]

約数ペア:

[(1, 21585309), (3, 7195103), (29, 744321), (87, 248107), (137, 157557), (411, 52519), (1811, 11919), (3973, 5433)]