18120319

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{3323}}^1$

素因数の和:3390

約数の個数: 16

約数和(自身を含む): 22337280

約数和(自身を除く): 4216961

約数列:

[1, 7, 19, 41, 133, 287, 779, 3323, 5453, 23261, 63137, 136243, 441959, 953701, 2588617, 18120319]

約数ペア:

[(1, 18120319), (7, 2588617), (19, 953701), (41, 441959), (133, 136243), (287, 63137), (779, 23261), (3323, 5453)]