20647794

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{2551}}^1$

素因数の和:2646

約数の個数: 32

約数和(自身を含む): 44098560

約数和(自身を除く): 23450766

約数列:

[1, 2, 3, 6, 19, 38, 57, 71, 114, 142, 213, 426, 1349, 2551, 2698, 4047, 5102, 7653, 8094, 15306, 48469, 96938, 145407, 181121, 290814, 362242, 543363, 1086726, 3441299, 6882598, 10323897, 20647794]

約数ペア:

[(1, 20647794), (2, 10323897), (3, 6882598), (6, 3441299), (19, 1086726), (38, 543363), (57, 362242), (71, 290814), (114, 181121), (142, 145407), (213, 96938), (426, 48469), (1349, 15306), (2551, 8094), (2698, 7653), (4047, 5102)]