128803521

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{557591}}^1$

素因数の和:557612

約数の個数: 16

約数和(自身を含む): 214115328

約数和(自身を除く): 85311807

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 557591, 1672773, 3903137, 6133501, 11709411, 18400503, 42934507, 128803521]

約数ペア:

[(1, 128803521), (3, 42934507), (7, 18400503), (11, 11709411), (21, 6133501), (33, 3903137), (77, 1672773), (231, 557591)]