21244355

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{9421}}^1$

素因数の和:9478

約数の個数: 16

約数和(自身を含む): 28492128

約数和(自身を除く): 7247773

約数列:

[1, 5, 11, 41, 55, 205, 451, 2255, 9421, 47105, 103631, 386261, 518155, 1931305, 4248871, 21244355]

約数ペア:

[(1, 21244355), (5, 4248871), (11, 1931305), (41, 518155), (55, 386261), (205, 103631), (451, 47105), (2255, 9421)]