18484081

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:325

約数の個数: 24

約数和(自身を含む): 23535680

約数和(自身を除く): 5051599

約数列:

[1, 7, 11, 77, 121, 139, 157, 847, 973, 1099, 1529, 1727, 10703, 12089, 16819, 18997, 21823, 117733, 132979, 152761, 240053, 1680371, 2640583, 18484081]

約数ペア:

[(1, 18484081), (7, 2640583), (11, 1680371), (77, 240053), (121, 152761), (139, 132979), (157, 117733), (847, 21823), (973, 18997), (1099, 16819), (1529, 12089), (1727, 10703)]