19979487

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{67271}}^1$

素因数の和:67291

約数の個数: 16

約数和(自身を含む): 32290560

約数和(自身を除く): 12311073

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 67271, 201813, 605439, 739981, 1816317, 2219943, 6659829, 19979487]

約数ペア:

[(1, 19979487), (3, 6659829), (9, 2219943), (11, 1816317), (27, 739981), (33, 605439), (99, 201813), (297, 67271)]