19775385

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{937}}^1$

素因数の和:1022

約数の個数: 48

約数和(自身を含む): 39801216

約数和(自身を除く): 20025831

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 67, 105, 201, 315, 335, 469, 603, 937, 1005, 1407, 2345, 2811, 3015, 4221, 4685, 6559, 7035, 8433, 14055, 19677, 21105, 32795, 42165, 59031, 62779, 98385, 188337, 295155, 313895, 439453, 565011, 941685, 1318359, 2197265, 2825055, 3955077, 6591795, 19775385]

約数ペア:

[(1, 19775385), (3, 6591795), (5, 3955077), (7, 2825055), (9, 2197265), (15, 1318359), (21, 941685), (35, 565011), (45, 439453), (63, 313895), (67, 295155), (105, 188337), (201, 98385), (315, 62779), (335, 59031), (469, 42165), (603, 32795), (937, 21105), (1005, 19677), (1407, 14055), (2345, 8433), (2811, 7035), (3015, 6559), (4221, 4685)]