21163263

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{173}}^1\times {\mathrm{337}}^1$

素因数の和:535

約数の個数: 24

約数和(自身を含む): 31287984

約数和(自身を除く): 10124721

約数列:

[1, 3, 11, 33, 121, 173, 337, 363, 519, 1011, 1903, 3707, 5709, 11121, 20933, 40777, 58301, 62799, 122331, 174903, 641311, 1923933, 7054421, 21163263]

約数ペア:

[(1, 21163263), (3, 7054421), (11, 1923933), (33, 641311), (121, 174903), (173, 122331), (337, 62799), (363, 58301), (519, 40777), (1011, 20933), (1903, 11121), (3707, 5709)]