20804868777

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1\times {\mathrm{140069}}^1$

素因数の和:140733

約数の個数: 32

約数和(自身を含む): 34638750720

約数和(自身を除く): 13833881943

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 643, 1929, 4501, 7073, 13503, 21219, 49511, 140069, 148533, 420207, 980483, 1540759, 2941449, 4622277, 10785313, 32355939, 90064367, 270193101, 630450569, 990708037, 1891351707, 2972124111, 6934956259, 20804868777]

約数ペア:

[(1, 20804868777), (3, 6934956259), (7, 2972124111), (11, 1891351707), (21, 990708037), (33, 630450569), (77, 270193101), (231, 90064367), (643, 32355939), (1929, 10785313), (4501, 4622277), (7073, 2941449), (13503, 1540759), (21219, 980483), (49511, 420207), (140069, 148533)]