209219889

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{20899}}^1$

素因数の和:21020

約数の個数: 16

約数和(自身を含む): 288921600

約数和(自身を除く): 79701711

約数列:

[1, 3, 47, 71, 141, 213, 3337, 10011, 20899, 62697, 982253, 1483829, 2946759, 4451487, 69739963, 209219889]

約数ペア:

[(1, 209219889), (3, 69739963), (47, 4451487), (71, 2946759), (141, 1483829), (213, 982253), (3337, 62697), (10011, 20899)]