20259855

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1949}}^1$

素因数の和:1981

約数の個数: 64

約数和(自身を含む): 44928000

約数和(自身を除く): 24668145

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 27, 33, 35, 45, 55, 63, 77, 99, 105, 135, 165, 189, 231, 297, 315, 385, 495, 693, 945, 1155, 1485, 1949, 2079, 3465, 5847, 9745, 10395, 13643, 17541, 21439, 29235, 40929, 52623, 64317, 68215, 87705, 107195, 122787, 150073, 192951, 204645, 263115, 321585, 368361, 450219, 578853, 613935, 750365, 964755, 1350657, 1841805, 2251095, 2894265, 4051971, 6753285, 20259855]

約数ペア:

[(1, 20259855), (3, 6753285), (5, 4051971), (7, 2894265), (9, 2251095), (11, 1841805), (15, 1350657), (21, 964755), (27, 750365), (33, 613935), (35, 578853), (45, 450219), (55, 368361), (63, 321585), (77, 263115), (99, 204645), (105, 192951), (135, 150073), (165, 122787), (189, 107195), (231, 87705), (297, 68215), (315, 64317), (385, 52623), (495, 40929), (693, 29235), (945, 21439), (1155, 17541), (1485, 13643), (1949, 10395), (2079, 9745), (3465, 5847)]