21789081

素因数分解:

$3^{12}\times {\mathrm{41}}^1$

素因数の和:77

約数の個数: 26

約数和(自身を含む): 33480762

約数和(自身を除く): 11691681

約数列:

[1, 3, 9, 27, 41, 81, 123, 243, 369, 729, 1107, 2187, 3321, 6561, 9963, 19683, 29889, 59049, 89667, 177147, 269001, 531441, 807003, 2421009, 7263027, 21789081]

約数ペア:

[(1, 21789081), (3, 7263027), (9, 2421009), (27, 807003), (41, 531441), (81, 269001), (123, 177147), (243, 89667), (369, 59049), (729, 29889), (1107, 19683), (2187, 9963), (3321, 6561)]