26721429

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{347}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 43207680

約数和(自身を除く): 16486251

約数列:

[1, 3, 7, 19, 21, 57, 133, 193, 347, 399, 579, 1041, 1351, 2429, 3667, 4053, 6593, 7287, 11001, 19779, 25669, 46151, 66971, 77007, 138453, 200913, 468797, 1272449, 1406391, 3817347, 8907143, 26721429]

約数ペア:

[(1, 26721429), (3, 8907143), (7, 3817347), (19, 1406391), (21, 1272449), (57, 468797), (133, 200913), (193, 138453), (347, 77007), (399, 66971), (579, 46151), (1041, 25669), (1351, 19779), (2429, 11001), (3667, 7287), (4053, 6593)]