21082004678

素因数分解:

$2^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{7567123}}^1$

素因数の和:7567331

約数の個数: 16

約数和(自身を含む): 36322195200

約数和(自身を除く): 15240190522

約数列:

[1, 2, 7, 14, 199, 398, 1393, 2786, 7567123, 15134246, 52969861, 105939722, 1505857477, 3011714954, 10541002339, 21082004678]

約数ペア:

[(1, 21082004678), (2, 10541002339), (7, 3011714954), (14, 1505857477), (199, 105939722), (398, 52969861), (1393, 15134246), (2786, 7567123)]