16885775

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{1871}}^1$

素因数の和:1919

約数の個数: 18

約数和(自身を含む): 22110192

約数和(自身を除く): 5224417

約数列:

[1, 5, 19, 25, 95, 361, 475, 1805, 1871, 9025, 9355, 35549, 46775, 177745, 675431, 888725, 3377155, 16885775]

約数ペア:

[(1, 16885775), (5, 3377155), (19, 888725), (25, 675431), (95, 177745), (361, 46775), (475, 35549), (1805, 9355), (1871, 9025)]