16720185

素因数分解:

$3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:333

約数の個数: 32

約数和(自身を含む): 27574272

約数和(自身を除く): 10854087

約数列:

[1, 3, 5, 15, 67, 127, 131, 201, 335, 381, 393, 635, 655, 1005, 1905, 1965, 8509, 8777, 16637, 25527, 26331, 42545, 43885, 49911, 83185, 127635, 131655, 249555, 1114679, 3344037, 5573395, 16720185]

約数ペア:

[(1, 16720185), (3, 5573395), (5, 3344037), (15, 1114679), (67, 249555), (127, 131655), (131, 127635), (201, 83185), (335, 49911), (381, 43885), (393, 42545), (635, 26331), (655, 25527), (1005, 16637), (1905, 8777), (1965, 8509)]