15666021

素因数分解:

$3^3\times 7^1\times {\mathrm{82889}}^1$

素因数の和:82905

約数の個数: 16

約数和(自身を含む): 26524800

約数和(自身を除く): 10858779

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 82889, 248667, 580223, 746001, 1740669, 2238003, 5222007, 15666021]

約数ペア:

[(1, 15666021), (3, 5222007), (7, 2238003), (9, 1740669), (21, 746001), (27, 580223), (63, 248667), (189, 82889)]