19661191

素因数分解:

${\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{211}}^1$

素因数の和:462

約数の個数: 16

約数和(自身を含む): 22163328

約数和(自身を除く): 2502137

約数列:

[1, 11, 43, 197, 211, 473, 2167, 2321, 8471, 9073, 41567, 93181, 99803, 457237, 1787381, 19661191]

約数ペア:

[(1, 19661191), (11, 1787381), (43, 457237), (197, 99803), (211, 93181), (473, 41567), (2167, 9073), (2321, 8471)]