28191789

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{751}}^1$

素因数の和:897

約数の個数: 24

約数和(自身を含む): 42154112

約数和(自身を除く): 13962323

約数列:

[1, 3, 9, 43, 97, 129, 291, 387, 751, 873, 2253, 4171, 6759, 12513, 32293, 37539, 72847, 96879, 218541, 290637, 655623, 3132421, 9397263, 28191789]

約数ペア:

[(1, 28191789), (3, 9397263), (9, 3132421), (43, 655623), (97, 290637), (129, 218541), (291, 96879), (387, 72847), (751, 37539), (873, 32293), (2253, 12513), (4171, 6759)]