20344269

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{457}}^1$

素因数の和:561

約数の個数: 32

約数和(自身を含む): 31656960

約数和(自身を除く): 11312691

約数列:

[1, 3, 11, 19, 33, 57, 71, 209, 213, 457, 627, 781, 1349, 1371, 2343, 4047, 5027, 8683, 14839, 15081, 26049, 32447, 44517, 95513, 97341, 286539, 356917, 616493, 1070751, 1849479, 6781423, 20344269]

約数ペア:

[(1, 20344269), (3, 6781423), (11, 1849479), (19, 1070751), (33, 616493), (57, 356917), (71, 286539), (209, 97341), (213, 95513), (457, 44517), (627, 32447), (781, 26049), (1349, 15081), (1371, 14839), (2343, 8683), (4047, 5027)]