5251239

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 9434880

約数和(自身を除く): 4183641

約数列:

[1, 3, 7, 9, 19, 21, 41, 57, 63, 107, 123, 133, 171, 287, 321, 369, 399, 749, 779, 861, 963, 1197, 2033, 2247, 2337, 2583, 4387, 5453, 6099, 6741, 7011, 13161, 14231, 16359, 18297, 30709, 39483, 42693, 49077, 83353, 92127, 128079, 250059, 276381, 583471, 750177, 1750413, 5251239]

約数ペア:

[(1, 5251239), (3, 1750413), (7, 750177), (9, 583471), (19, 276381), (21, 250059), (41, 128079), (57, 92127), (63, 83353), (107, 49077), (123, 42693), (133, 39483), (171, 30709), (287, 18297), (321, 16359), (369, 14231), (399, 13161), (749, 7011), (779, 6741), (861, 6099), (963, 5453), (1197, 4387), (2033, 2583), (2247, 2337)]