1861981

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{151}}^1$

素因数の和:240

約数の個数: 16

約数和(自身を含む): 2188800

約数和(自身を除く): 326819

約数列:

[1, 11, 19, 59, 151, 209, 649, 1121, 1661, 2869, 8909, 12331, 31559, 97999, 169271, 1861981]

約数ペア:

[(1, 1861981), (11, 169271), (19, 97999), (59, 31559), (151, 12331), (209, 8909), (649, 2869), (1121, 1661)]