21324141

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{6421}}^1$

素因数の和:6474

約数の個数: 20

約数和(自身を含む): 32636604

約数和(自身を除く): 11312463

約数列:

[1, 3, 9, 27, 41, 81, 123, 369, 1107, 3321, 6421, 19263, 57789, 173367, 263261, 520101, 789783, 2369349, 7108047, 21324141]

約数ペア:

[(1, 21324141), (3, 7108047), (9, 2369349), (27, 789783), (41, 520101), (81, 263261), (123, 173367), (369, 57789), (1107, 19263), (3321, 6421)]