213179905

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{719}}^1\times {\mathrm{3121}}^1$

素因数の和:3864

約数の個数: 16

約数和(自身を含む): 269740800

約数和(自身を除く): 56560895

約数列:

[1, 5, 19, 95, 719, 3121, 3595, 13661, 15605, 59299, 68305, 296495, 2243999, 11219995, 42635981, 213179905]

約数ペア:

[(1, 213179905), (5, 42635981), (19, 11219995), (95, 2243999), (719, 296495), (3121, 68305), (3595, 59299), (13661, 15605)]