20802309

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{21737}}^1$

素因数の和:21780

約数の個数: 16

約数和(自身を含む): 31302720

約数和(自身を除く): 10500411

約数列:

[1, 3, 11, 29, 33, 87, 319, 957, 21737, 65211, 239107, 630373, 717321, 1891119, 6934103, 20802309]

約数ペア:

[(1, 20802309), (3, 6934103), (11, 1891119), (29, 717321), (33, 630373), (87, 239107), (319, 65211), (957, 21737)]