21726243

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{293}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 39626496

約数和(自身を除く): 17900253

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 107, 231, 293, 321, 693, 749, 879, 963, 1177, 2051, 2247, 2637, 3223, 3531, 6153, 6741, 8239, 9669, 10593, 18459, 22561, 24717, 29007, 31351, 67683, 74151, 94053, 203049, 219457, 282159, 344861, 658371, 1034583, 1975113, 2414027, 3103749, 7242081, 21726243]

約数ペア:

[(1, 21726243), (3, 7242081), (7, 3103749), (9, 2414027), (11, 1975113), (21, 1034583), (33, 658371), (63, 344861), (77, 282159), (99, 219457), (107, 203049), (231, 94053), (293, 74151), (321, 67683), (693, 31351), (749, 29007), (879, 24717), (963, 22561), (1177, 18459), (2051, 10593), (2247, 9669), (2637, 8239), (3223, 6741), (3531, 6153)]