28738521

素因数分解:

$3^2\times 7^1\times {\mathrm{456167}}^1$

素因数の和:456180

約数の個数: 12

約数和(自身を含む): 47441472

約数和(自身を除く): 18702951

約数列:

[1, 3, 7, 9, 21, 63, 456167, 1368501, 3193169, 4105503, 9579507, 28738521]

約数ペア:

[(1, 28738521), (3, 9579507), (7, 4105503), (9, 3193169), (21, 1368501), (63, 456167)]