290787

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{227}}^1$

素因数の和:298

約数の個数: 16

約数和(自身を含む): 452352

約数和(自身を除く): 161565

約数列:

[1, 3, 7, 21, 61, 183, 227, 427, 681, 1281, 1589, 4767, 13847, 41541, 96929, 290787]

約数ペア:

[(1, 290787), (3, 96929), (7, 41541), (21, 13847), (61, 4767), (183, 1589), (227, 1281), (427, 681)]