28155239

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{1051}}^1$

素因数の和:1190

約数の個数: 16

約数和(自身を含む): 33327360

約数和(自身を除く): 5172121

約数列:

[1, 7, 43, 89, 301, 623, 1051, 3827, 7357, 26789, 45193, 93539, 316351, 654773, 4022177, 28155239]

約数ペア:

[(1, 28155239), (7, 4022177), (43, 654773), (89, 316351), (301, 93539), (623, 45193), (1051, 26789), (3827, 7357)]