28909521

素因数分解:

$3^3\times {\mathrm{823}}^1\times {\mathrm{1301}}^1$

素因数の和:2133

約数の個数: 16

約数和(自身を含む): 42913920

約数和(自身を除く): 14004399

約数列:

[1, 3, 9, 27, 823, 1301, 2469, 3903, 7407, 11709, 22221, 35127, 1070723, 3212169, 9636507, 28909521]

約数ペア:

[(1, 28909521), (3, 9636507), (9, 3212169), (27, 1070723), (823, 35127), (1301, 22221), (2469, 11709), (3903, 7407)]