21749255

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{5417}}^1$

素因数の和:5506

約数の個数: 16

約数和(自身を含む): 28867104

約数和(自身を除く): 7117849

約数列:

[1, 5, 11, 55, 73, 365, 803, 4015, 5417, 27085, 59587, 297935, 395441, 1977205, 4349851, 21749255]

約数ペア:

[(1, 21749255), (5, 4349851), (11, 1977205), (55, 395441), (73, 297935), (365, 59587), (803, 27085), (4015, 5417)]