200291

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:122

約数の個数: 16

約数和(自身を含む): 258048

約数和(自身を除く): 57757

約数列:

[1, 7, 13, 31, 71, 91, 217, 403, 497, 923, 2201, 2821, 6461, 15407, 28613, 200291]

約数ペア:

[(1, 200291), (7, 28613), (13, 15407), (31, 6461), (71, 2821), (91, 2201), (217, 923), (403, 497)]