12891321

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{773}}^1$

素因数の和:905

約数の個数: 24

約数和(自身を含む): 19922760

約数和(自身を除く): 7031439

約数列:

[1, 3, 9, 17, 51, 109, 153, 327, 773, 981, 1853, 2319, 5559, 6957, 13141, 16677, 39423, 84257, 118269, 252771, 758313, 1432369, 4297107, 12891321]

約数ペア:

[(1, 12891321), (3, 4297107), (9, 1432369), (17, 758313), (51, 252771), (109, 118269), (153, 84257), (327, 39423), (773, 16677), (981, 13141), (1853, 6957), (2319, 5559)]