19726778885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{439}}^1\times {\mathrm{817013}}^1$

素因数の和:817468

約数の個数: 16

約数和(自身を含む): 25883003520

約数和(自身を除く): 6156224635

約数列:

[1, 5, 11, 55, 439, 2195, 4829, 24145, 817013, 4085065, 8987143, 44935715, 358668707, 1793343535, 3945355777, 19726778885]

約数ペア:

[(1, 19726778885), (5, 3945355777), (11, 1793343535), (55, 358668707), (439, 44935715), (2195, 8987143), (4829, 4085065), (24145, 817013)]