18214287

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{487}}^1$

素因数の和:647

約数の個数: 32

約数和(自身を含む): 30170112

約数和(自身を除く): 11955825

約数列:

[1, 3, 7, 13, 21, 39, 91, 137, 273, 411, 487, 959, 1461, 1781, 2877, 3409, 5343, 6331, 10227, 12467, 18993, 37401, 44317, 66719, 132951, 200157, 467033, 867347, 1401099, 2602041, 6071429, 18214287]

約数ペア:

[(1, 18214287), (3, 6071429), (7, 2602041), (13, 1401099), (21, 867347), (39, 467033), (91, 200157), (137, 132951), (273, 66719), (411, 44317), (487, 37401), (959, 18993), (1461, 12467), (1781, 10227), (2877, 6331), (3409, 5343)]