21415653

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{8291}}^1$

素因数の和:8345

約数の個数: 24

約数和(自身を含む): 36219456

約数和(自身を除く): 14803803

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 8291, 24873, 58037, 74619, 174111, 339931, 522333, 1019793, 2379517, 3059379, 7138551, 21415653]

約数ペア:

[(1, 21415653), (3, 7138551), (7, 3059379), (9, 2379517), (21, 1019793), (41, 522333), (63, 339931), (123, 174111), (287, 74619), (369, 58037), (861, 24873), (2583, 8291)]