21201117

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1123}}^1$

素因数の和:1193

約数の個数: 32

約数和(自身を含む): 34529280

約数和(自身を除く): 13328163

約数列:

[1, 3, 7, 21, 29, 31, 87, 93, 203, 217, 609, 651, 899, 1123, 2697, 3369, 6293, 7861, 18879, 23583, 32567, 34813, 97701, 104439, 227969, 243691, 683907, 731073, 1009577, 3028731, 7067039, 21201117]

約数ペア:

[(1, 21201117), (3, 7067039), (7, 3028731), (21, 1009577), (29, 731073), (31, 683907), (87, 243691), (93, 227969), (203, 104439), (217, 97701), (609, 34813), (651, 32567), (899, 23583), (1123, 18879), (2697, 7861), (3369, 6293)]