21864447

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 36421632

約数和(自身を除く): 14557185

約数列:

[1, 3, 9, 11, 33, 37, 47, 99, 111, 127, 141, 333, 381, 407, 423, 517, 1143, 1221, 1397, 1551, 1739, 3663, 4191, 4653, 4699, 5217, 5969, 12573, 14097, 15651, 17907, 19129, 42291, 51689, 53721, 57387, 65659, 155067, 172161, 196977, 220853, 465201, 590931, 662559, 1987677, 2429383, 7288149, 21864447]

約数ペア:

[(1, 21864447), (3, 7288149), (9, 2429383), (11, 1987677), (33, 662559), (37, 590931), (47, 465201), (99, 220853), (111, 196977), (127, 172161), (141, 155067), (333, 65659), (381, 57387), (407, 53721), (423, 51689), (517, 42291), (1143, 19129), (1221, 17907), (1397, 15651), (1551, 14097), (1739, 12573), (3663, 5969), (4191, 5217), (4653, 4699)]