1720349813

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{994997}}^1$

素因数の和:995036

約数の個数: 16

約数和(自身を含む): 2228795520

約数和(自身を除く): 508445707

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 994997, 6964979, 12934961, 18904943, 90544727, 132334601, 245764259, 1720349813]

約数ペア:

[(1, 1720349813), (7, 245764259), (13, 132334601), (19, 90544727), (91, 18904943), (133, 12934961), (247, 6964979), (1729, 994997)]