201215278

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{128819}}^1$

素因数の和:128903

約数の個数: 16

約数和(自身を含む): 333901440

約数和(自身を除く): 132686162

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 128819, 257638, 1417009, 2834018, 9146149, 18292298, 100607639, 201215278]

約数ペア:

[(1, 201215278), (2, 100607639), (11, 18292298), (22, 9146149), (71, 2834018), (142, 1417009), (781, 257638), (1562, 128819)]