19993787

素因数分解:

${\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{359}}^1$

素因数の和:514

約数の個数: 16

約数和(自身を含む): 22498560

約数和(自身を除く): 2504773

約数列:

[1, 11, 61, 83, 359, 671, 913, 3949, 5063, 21899, 29797, 55693, 240889, 327767, 1817617, 19993787]

約数ペア:

[(1, 19993787), (11, 1817617), (61, 327767), (83, 240889), (359, 55693), (671, 29797), (913, 21899), (3949, 5063)]