858417

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{997}}^1$

素因数の和:1048

約数の個数: 16

約数和(自身を含む): 1341312

約数和(自身を除く): 482895

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 997, 2991, 6979, 20937, 40877, 122631, 286139, 858417]

約数ペア:

[(1, 858417), (3, 286139), (7, 122631), (21, 40877), (41, 20937), (123, 6979), (287, 2991), (861, 997)]