25161381

素因数分解:

$3^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1987}}^1$

素因数の和:2070

約数の個数: 32

約数和(自身を含む): 43258880

約数和(自身を除く): 18097499

約数列:

[1, 3, 7, 9, 21, 27, 63, 67, 189, 201, 469, 603, 1407, 1809, 1987, 4221, 5961, 12663, 13909, 17883, 41727, 53649, 125181, 133129, 375543, 399387, 931903, 1198161, 2795709, 3594483, 8387127, 25161381]

約数ペア:

[(1, 25161381), (3, 8387127), (7, 3594483), (9, 2795709), (21, 1198161), (27, 931903), (63, 399387), (67, 375543), (189, 133129), (201, 125181), (469, 53649), (603, 41727), (1407, 17883), (1809, 13909), (1987, 12663), (4221, 5961)]