28721211

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{2417}}^1$

素因数の和:2670

約数の個数: 16

約数和(自身を含む): 40738464

約数和(自身を除く): 12017253

約数列:

[1, 3, 17, 51, 233, 699, 2417, 3961, 7251, 11883, 41089, 123267, 563161, 1689483, 9573737, 28721211]

約数ペア:

[(1, 28721211), (3, 9573737), (17, 1689483), (51, 563161), (233, 123267), (699, 41089), (2417, 11883), (3961, 7251)]