217726465

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{9403}}^1$

素因数の和:9840

約数の個数: 16

約数和(自身を含む): 285731136

約数和(自身を除く): 68004671

約数列:

[1, 5, 11, 55, 421, 2105, 4631, 9403, 23155, 47015, 103433, 517165, 3958663, 19793315, 43545293, 217726465]

約数ペア:

[(1, 217726465), (5, 43545293), (11, 19793315), (55, 3958663), (421, 517165), (2105, 103433), (4631, 47015), (9403, 23155)]