21181587

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{32537}}^1$

素因数の和:32578

約数の個数: 16

約数和(自身を含む): 33318912

約数和(自身を除く): 12137325

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 32537, 97611, 227759, 683277, 1008647, 3025941, 7060529, 21181587]

約数ペア:

[(1, 21181587), (3, 7060529), (7, 3025941), (21, 1008647), (31, 683277), (93, 227759), (217, 97611), (651, 32537)]