28421091

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{19861}}^1$

素因数の和:19923

約数の個数: 16

約数和(自身を含む): 42901920

約数和(自身を除く): 14480829

約数列:

[1, 3, 9, 27, 53, 159, 477, 1431, 19861, 59583, 178749, 536247, 1052633, 3157899, 9473697, 28421091]

約数ペア:

[(1, 28421091), (3, 9473697), (9, 3157899), (27, 1052633), (53, 536247), (159, 178749), (477, 59583), (1431, 19861)]