28958293

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{18719}}^1$

素因数の和:18756

約数の個数: 16

約数和(自身を含む): 37739520

約数和(自身を除く): 8781227

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 18719, 131033, 243347, 318223, 1703429, 2227561, 4136899, 28958293]

約数ペア:

[(1, 28958293), (7, 4136899), (13, 2227561), (17, 1703429), (91, 318223), (119, 243347), (221, 131033), (1547, 18719)]