20781429

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{14051}}^1$

素因数の和:14100

約数の個数: 16

約数和(自身を含む): 30352320

約数和(自身を除く): 9570891

約数列:

[1, 3, 17, 29, 51, 87, 493, 1479, 14051, 42153, 238867, 407479, 716601, 1222437, 6927143, 20781429]

約数ペア:

[(1, 20781429), (3, 6927143), (17, 1222437), (29, 716601), (51, 407479), (87, 238867), (493, 42153), (1479, 14051)]