17997865

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{863}}^1$

素因数の和:1008

約数の個数: 16

約数和(自身を含む): 22353408

約数和(自身を除く): 4355543

約数列:

[1, 5, 43, 97, 215, 485, 863, 4171, 4315, 20855, 37109, 83711, 185545, 418555, 3599573, 17997865]

約数ペア:

[(1, 17997865), (5, 3599573), (43, 418555), (97, 185545), (215, 83711), (485, 37109), (863, 20855), (4171, 4315)]