18021584

素因数分解:

$2^4\times 7^1\times {\mathrm{160907}}^1$

素因数の和:160922

約数の個数: 20

約数和(自身を含む): 39905184

約数和(自身を除く): 21883600

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 160907, 321814, 643628, 1126349, 1287256, 2252698, 2574512, 4505396, 9010792, 18021584]

約数ペア:

[(1, 18021584), (2, 9010792), (4, 4505396), (7, 2574512), (8, 2252698), (14, 1287256), (16, 1126349), (28, 643628), (56, 321814), (112, 160907)]