28009635

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{20981}}^1$

素因数の和:21078

約数の個数: 16

約数和(自身を含む): 45321120

約数和(自身を除く): 17311485

約数列:

[1, 3, 5, 15, 89, 267, 445, 1335, 20981, 62943, 104905, 314715, 1867309, 5601927, 9336545, 28009635]

約数ペア:

[(1, 28009635), (3, 9336545), (5, 5601927), (15, 1867309), (89, 314715), (267, 104905), (445, 62943), (1335, 20981)]