18721919489

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{719}}^1\times {\mathrm{1033}}^1$

素因数の和:2049

約数の個数: 32

約数和(自身を含む): 23180129280

約数和(自身を除く): 4458209791

約数列:

[1, 7, 13, 91, 277, 719, 1033, 1939, 3601, 5033, 7231, 9347, 13429, 25207, 65429, 94003, 199163, 286141, 742727, 1394141, 2002987, 2589119, 3719833, 5199089, 9655451, 18123833, 26038831, 67588157, 205735379, 1440147653, 2674559927, 18721919489]

約数ペア:

[(1, 18721919489), (7, 2674559927), (13, 1440147653), (91, 205735379), (277, 67588157), (719, 26038831), (1033, 18123833), (1939, 9655451), (3601, 5199089), (5033, 3719833), (7231, 2589119), (9347, 2002987), (13429, 1394141), (25207, 742727), (65429, 286141), (94003, 199163)]