18914435

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{431}}^1$

素因数の和:634

約数の個数: 16

約数和(自身を含む): 23265792

約数和(自身を除く): 4351357

約数列:

[1, 5, 67, 131, 335, 431, 655, 2155, 8777, 28877, 43885, 56461, 144385, 282305, 3782887, 18914435]

約数ペア:

[(1, 18914435), (5, 3782887), (67, 282305), (131, 144385), (335, 56461), (431, 43885), (655, 28877), (2155, 8777)]