20595905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{19709}}^1$

素因数の和:19744

約数の個数: 16

約数和(自身を含む): 28382400

約数和(自身を除く): 7786495

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 19709, 98545, 216799, 374471, 1083995, 1872355, 4119181, 20595905]

約数ペア:

[(1, 20595905), (5, 4119181), (11, 1872355), (19, 1083995), (55, 374471), (95, 216799), (209, 98545), (1045, 19709)]