28715169

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{19259}}^1$

素因数の和:19340

約数の個数: 16

約数和(自身を含む): 44375040

約数和(自身を除く): 15659871

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 19259, 57777, 134813, 404439, 1367389, 4102167, 9571723, 28715169]

約数ペア:

[(1, 28715169), (3, 9571723), (7, 4102167), (21, 1367389), (71, 404439), (213, 134813), (497, 57777), (1491, 19259)]