20785515543

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{2193259}}^1$

素因数の和:2193290

約数の個数: 28

約数和(自身を含む): 33561264520

約数和(自身を除く): 12775748977

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 729, 1053, 3159, 9477, 2193259, 6579777, 19739331, 28512367, 59217993, 85537101, 177653979, 256611303, 532961937, 769833909, 1598885811, 2309501727, 6928505181, 20785515543]

約数ペア:

[(1, 20785515543), (3, 6928505181), (9, 2309501727), (13, 1598885811), (27, 769833909), (39, 532961937), (81, 256611303), (117, 177653979), (243, 85537101), (351, 59217993), (729, 28512367), (1053, 19739331), (3159, 6579777), (9477, 2193259)]