28578681

素因数分解:

$3^2\times {\mathrm{41}}^2\times {\mathrm{1889}}^1$

素因数の和:1977

約数の個数: 18

約数和(自身を含む): 42334110

約数和(自身を除く): 13755429

約数列:

[1, 3, 9, 41, 123, 369, 1681, 1889, 5043, 5667, 15129, 17001, 77449, 232347, 697041, 3175409, 9526227, 28578681]

約数ペア:

[(1, 28578681), (3, 9526227), (9, 3175409), (41, 697041), (123, 232347), (369, 77449), (1681, 17001), (1889, 15129), (5043, 5667)]