21064725

素因数分解:

$3^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{2837}}^1$

素因数の和:2867

約数の個数: 48

約数和(自身を含む): 42229440

約数和(自身を除く): 21164715

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 99, 135, 165, 225, 275, 297, 495, 675, 825, 1485, 2475, 2837, 7425, 8511, 14185, 25533, 31207, 42555, 70925, 76599, 93621, 127665, 156035, 212775, 280863, 382995, 468105, 638325, 780175, 842589, 1404315, 1914975, 2340525, 4212945, 7021575, 21064725]

約数ペア:

[(1, 21064725), (3, 7021575), (5, 4212945), (9, 2340525), (11, 1914975), (15, 1404315), (25, 842589), (27, 780175), (33, 638325), (45, 468105), (55, 382995), (75, 280863), (99, 212775), (135, 156035), (165, 127665), (225, 93621), (275, 76599), (297, 70925), (495, 42555), (675, 31207), (825, 25533), (1485, 14185), (2475, 8511), (2837, 7425)]