201909897

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{1021}}^1$

素因数の和:1150

約数の個数: 48

約数和(自身を含む): 346073728

約数和(自身を除く): 144163831

約数列:

[1, 3, 7, 9, 21, 43, 63, 73, 129, 219, 301, 387, 511, 657, 903, 1021, 1533, 2709, 3063, 3139, 4599, 7147, 9189, 9417, 21441, 21973, 28251, 43903, 64323, 65919, 74533, 131709, 197757, 223599, 307321, 395127, 521731, 670797, 921963, 1565193, 2765889, 3204919, 4695579, 9614757, 22434433, 28844271, 67303299, 201909897]

約数ペア:

[(1, 201909897), (3, 67303299), (7, 28844271), (9, 22434433), (21, 9614757), (43, 4695579), (63, 3204919), (73, 2765889), (129, 1565193), (219, 921963), (301, 670797), (387, 521731), (511, 395127), (657, 307321), (903, 223599), (1021, 197757), (1533, 131709), (2709, 74533), (3063, 65919), (3139, 64323), (4599, 43903), (7147, 28251), (9189, 21973), (9417, 21441)]