21031428

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{283}}^1\times {\mathrm{563}}^1$

素因数の和:864

約数の個数: 48

約数和(自身を含む): 53819136

約数和(自身を除く): 32787708

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 283, 563, 566, 849, 1126, 1132, 1689, 1698, 2252, 3113, 3378, 3396, 6193, 6226, 6756, 9339, 12386, 12452, 18579, 18678, 24772, 37158, 37356, 74316, 159329, 318658, 477987, 637316, 955974, 1752619, 1911948, 3505238, 5257857, 7010476, 10515714, 21031428]

約数ペア:

[(1, 21031428), (2, 10515714), (3, 7010476), (4, 5257857), (6, 3505238), (11, 1911948), (12, 1752619), (22, 955974), (33, 637316), (44, 477987), (66, 318658), (132, 159329), (283, 74316), (563, 37356), (566, 37158), (849, 24772), (1126, 18678), (1132, 18579), (1689, 12452), (1698, 12386), (2252, 9339), (3113, 6756), (3378, 6226), (3396, 6193)]