199921071

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{2179}}^1$

素因数の和:2463

約数の個数: 32

約数和(自身を含む): 323965440

約数和(自身を除く): 124044369

約数列:

[1, 3, 7, 17, 21, 51, 119, 257, 357, 771, 1799, 2179, 4369, 5397, 6537, 13107, 15253, 30583, 37043, 45759, 91749, 111129, 259301, 560003, 777903, 1680009, 3920021, 9520051, 11760063, 28560153, 66640357, 199921071]

約数ペア:

[(1, 199921071), (3, 66640357), (7, 28560153), (17, 11760063), (21, 9520051), (51, 3920021), (119, 1680009), (257, 777903), (357, 560003), (771, 259301), (1799, 111129), (2179, 91749), (4369, 45759), (5397, 37043), (6537, 30583), (13107, 15253)]