20775825

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{4397}}^1$

素因数の和:4423

約数の個数: 48

約数和(自身を含む): 43628160

約数和(自身を除く): 22852335

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 135, 175, 189, 225, 315, 525, 675, 945, 1575, 4397, 4725, 13191, 21985, 30779, 39573, 65955, 92337, 109925, 118719, 153895, 197865, 277011, 329775, 461685, 593595, 769475, 831033, 989325, 1385055, 2308425, 2967975, 4155165, 6925275, 20775825]

約数ペア:

[(1, 20775825), (3, 6925275), (5, 4155165), (7, 2967975), (9, 2308425), (15, 1385055), (21, 989325), (25, 831033), (27, 769475), (35, 593595), (45, 461685), (63, 329775), (75, 277011), (105, 197865), (135, 153895), (175, 118719), (189, 109925), (225, 92337), (315, 65955), (525, 39573), (675, 30779), (945, 21985), (1575, 13191), (4397, 4725)]