20778309

素因数分解:

$3^3\times {\mathrm{439}}^1\times {\mathrm{1753}}^1$

素因数の和:2201

約数の個数: 16

約数和(自身を含む): 30870400

約数和(自身を除く): 10092091

約数列:

[1, 3, 9, 27, 439, 1317, 1753, 3951, 5259, 11853, 15777, 47331, 769567, 2308701, 6926103, 20778309]

約数ペア:

[(1, 20778309), (3, 6926103), (9, 2308701), (27, 769567), (439, 47331), (1317, 15777), (1753, 11853), (3951, 5259)]