19690979

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{5441}}^1$

素因数の和:5506

約数の個数: 16

約数和(自身を含む): 25076736

約数和(自身を除く): 5385757

約数列:

[1, 7, 11, 47, 77, 329, 517, 3619, 5441, 38087, 59851, 255727, 418957, 1790089, 2812997, 19690979]

約数ペア:

[(1, 19690979), (7, 2812997), (11, 1790089), (47, 418957), (77, 255727), (329, 59851), (517, 38087), (3619, 5441)]