21375588

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{521}}^1$

素因数の和:804

約数の個数: 48

約数和(自身を含む): 54020736

約数和(自身を除く): 32645148

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 263, 521, 526, 789, 1042, 1052, 1563, 1578, 2084, 3126, 3156, 3419, 6252, 6773, 6838, 10257, 13546, 13676, 20319, 20514, 27092, 40638, 41028, 81276, 137023, 274046, 411069, 548092, 822138, 1644276, 1781299, 3562598, 5343897, 7125196, 10687794, 21375588]

約数ペア:

[(1, 21375588), (2, 10687794), (3, 7125196), (4, 5343897), (6, 3562598), (12, 1781299), (13, 1644276), (26, 822138), (39, 548092), (52, 411069), (78, 274046), (156, 137023), (263, 81276), (521, 41028), (526, 40638), (789, 27092), (1042, 20514), (1052, 20319), (1563, 13676), (1578, 13546), (2084, 10257), (3126, 6838), (3156, 6773), (3419, 6252)]