28909391

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1049}}^1$

素因数の和:1214

約数の個数: 16

約数和(自身を含む): 34406400

約数和(自身を除く): 5497009

約数列:

[1, 7, 31, 127, 217, 889, 1049, 3937, 7343, 27559, 32519, 133223, 227633, 932561, 4129913, 28909391]

約数ペア:

[(1, 28909391), (7, 4129913), (31, 932561), (127, 227633), (217, 133223), (889, 32519), (1049, 27559), (3937, 7343)]