18728693

素因数分解:

${\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{653}}^1$

素因数の和:748

約数の個数: 16

約数和(自身を含む): 20718720

約数和(自身を除く): 1990027

約数列:

[1, 23, 29, 43, 653, 667, 989, 1247, 15019, 18937, 28079, 28681, 435551, 645817, 814291, 18728693]

約数ペア:

[(1, 18728693), (23, 814291), (29, 645817), (43, 435551), (653, 28681), (667, 28079), (989, 18937), (1247, 15019)]