12112821

素因数分解:

$3^5\times 7^1\times {\mathrm{7121}}^1$

素因数の和:7143

約数の個数: 24

約数和(自身を含む): 20739264

約数和(自身を除く): 8626443

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 7121, 21363, 49847, 64089, 149541, 192267, 448623, 576801, 1345869, 1730403, 4037607, 12112821]

約数ペア:

[(1, 12112821), (3, 4037607), (7, 1730403), (9, 1345869), (21, 576801), (27, 448623), (63, 192267), (81, 149541), (189, 64089), (243, 49847), (567, 21363), (1701, 7121)]