202181805

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{213949}}^1$

素因数の和:213970

約数の個数: 32

約数和(自身を含む): 410784000

約数和(自身を除く): 208602195

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 213949, 641847, 1069745, 1497643, 1925541, 3209235, 4492929, 5776623, 7488215, 9627705, 13478787, 22464645, 28883115, 40436361, 67393935, 202181805]

約数ペア:

[(1, 202181805), (3, 67393935), (5, 40436361), (7, 28883115), (9, 22464645), (15, 13478787), (21, 9627705), (27, 7488215), (35, 5776623), (45, 4492929), (63, 3209235), (105, 1925541), (135, 1497643), (189, 1069745), (315, 641847), (945, 213949)]