21411309

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{12953}}^1$

素因数の和:13004

約数の個数: 16

約数和(自身を含む): 31089600

約数和(自身を除く): 9678291

約数列:

[1, 3, 19, 29, 57, 87, 551, 1653, 12953, 38859, 246107, 375637, 738321, 1126911, 7137103, 21411309]

約数ペア:

[(1, 21411309), (3, 7137103), (19, 1126911), (29, 738321), (57, 375637), (87, 246107), (551, 38859), (1653, 12953)]