21497049

素因数分解:

$3^3\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1063}}^1$

素因数の和:1186

約数の個数: 32

約数和(自身を含む): 36771840

約数和(自身を除く): 15274791

約数列:

[1, 3, 7, 9, 21, 27, 63, 107, 189, 321, 749, 963, 1063, 2247, 2889, 3189, 6741, 7441, 9567, 20223, 22323, 28701, 66969, 113741, 200907, 341223, 796187, 1023669, 2388561, 3071007, 7165683, 21497049]

約数ペア:

[(1, 21497049), (3, 7165683), (7, 3071007), (9, 2388561), (21, 1023669), (27, 796187), (63, 341223), (107, 200907), (189, 113741), (321, 66969), (749, 28701), (963, 22323), (1063, 20223), (2247, 9567), (2889, 7441), (3189, 6741)]