28858739

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{16691}}^1$

素因数の和:16730

約数の個数: 16

約数和(自身を含む): 37390080

約数和(自身を除く): 8531341

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 16691, 116837, 216983, 317129, 1518881, 2219903, 4122677, 28858739]

約数ペア:

[(1, 28858739), (7, 4122677), (13, 2219903), (19, 1518881), (91, 317129), (133, 216983), (247, 116837), (1729, 16691)]