19205571

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1171}}^1$

素因数の和:1263

約数の個数: 32

約数和(自身を含む): 32403456

約数和(自身を除く): 13197885

約数列:

[1, 3, 7, 11, 21, 33, 71, 77, 213, 231, 497, 781, 1171, 1491, 2343, 3513, 5467, 8197, 12881, 16401, 24591, 38643, 83141, 90167, 249423, 270501, 581987, 914551, 1745961, 2743653, 6401857, 19205571]

約数ペア:

[(1, 19205571), (3, 6401857), (7, 2743653), (11, 1745961), (21, 914551), (33, 581987), (71, 270501), (77, 249423), (213, 90167), (231, 83141), (497, 38643), (781, 24591), (1171, 16401), (1491, 12881), (2343, 8197), (3513, 5467)]