159451209

素因数分解:

$3^2\times {\mathrm{139}}^1\times {\mathrm{197}}^1\times {\mathrm{647}}^1$

素因数の和:989

約数の個数: 24

約数和(自身を含む): 233513280

約数和(自身を除く): 74062071

約数列:

[1, 3, 9, 139, 197, 417, 591, 647, 1251, 1773, 1941, 5823, 27383, 82149, 89933, 127459, 246447, 269799, 382377, 809397, 1147131, 17716801, 53150403, 159451209]

約数ペア:

[(1, 159451209), (3, 53150403), (9, 17716801), (139, 1147131), (197, 809397), (417, 382377), (591, 269799), (647, 246447), (1251, 127459), (1773, 89933), (1941, 82149), (5823, 27383)]