20925675

素因数分解:

$3^3\times 5^2\times {\mathrm{29}}^1\times {\mathrm{1069}}^1$

素因数の和:1117

約数の個数: 48

約数和(自身を含む): 39804000

約数和(自身を除く): 18878325

約数列:

[1, 3, 5, 9, 15, 25, 27, 29, 45, 75, 87, 135, 145, 225, 261, 435, 675, 725, 783, 1069, 1305, 2175, 3207, 3915, 5345, 6525, 9621, 16035, 19575, 26725, 28863, 31001, 48105, 80175, 93003, 144315, 155005, 240525, 279009, 465015, 721575, 775025, 837027, 1395045, 2325075, 4185135, 6975225, 20925675]

約数ペア:

[(1, 20925675), (3, 6975225), (5, 4185135), (9, 2325075), (15, 1395045), (25, 837027), (27, 775025), (29, 721575), (45, 465015), (75, 279009), (87, 240525), (135, 155005), (145, 144315), (225, 93003), (261, 80175), (435, 48105), (675, 31001), (725, 28863), (783, 26725), (1069, 19575), (1305, 16035), (2175, 9621), (3207, 6525), (3915, 5345)]