19969081

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{1061}}^1$

素因数の和:1160

約数の個数: 16

約数和(自身を含む): 22939200

約数和(自身を除く): 2970119

約数列:

[1, 11, 29, 59, 319, 649, 1061, 1711, 11671, 18821, 30769, 62599, 338459, 688589, 1815371, 19969081]

約数ペア:

[(1, 19969081), (11, 1815371), (29, 688589), (59, 338459), (319, 62599), (649, 30769), (1061, 18821), (1711, 11671)]