28968213

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1\times {\mathrm{443}}^1$

素因数の和:824

約数の個数: 16

約数和(自身を含む): 39384576

約数和(自身を除く): 10416363

約数列:

[1, 3, 71, 213, 307, 443, 921, 1329, 21797, 31453, 65391, 94359, 136001, 408003, 9656071, 28968213]

約数ペア:

[(1, 28968213), (3, 9656071), (71, 408003), (213, 136001), (307, 94359), (443, 65391), (921, 31453), (1329, 21797)]