20975752

素因数分解:

$2^3\times 7^1\times {\mathrm{463}}^1\times {\mathrm{809}}^1$

素因数の和:1285

約数の個数: 32

約数和(自身を含む): 45100800

約数和(自身を除く): 24125048

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 463, 809, 926, 1618, 1852, 3236, 3241, 3704, 5663, 6472, 6482, 11326, 12964, 22652, 25928, 45304, 374567, 749134, 1498268, 2621969, 2996536, 5243938, 10487876, 20975752]

約数ペア:

[(1, 20975752), (2, 10487876), (4, 5243938), (7, 2996536), (8, 2621969), (14, 1498268), (28, 749134), (56, 374567), (463, 45304), (809, 25928), (926, 22652), (1618, 12964), (1852, 11326), (3236, 6482), (3241, 6472), (3704, 5663)]