20147865

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{31237}}^1$

素因数の和:31288

約数の個数: 16

約数和(自身を含む): 32987328

約数和(自身を除く): 12839463

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 31237, 93711, 156185, 468555, 1343191, 4029573, 6715955, 20147865]

約数ペア:

[(1, 20147865), (3, 6715955), (5, 4029573), (15, 1343191), (43, 468555), (129, 156185), (215, 93711), (645, 31237)]