20812484

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{6143}}^1$

素因数の和:6176

約数の個数: 36

約数和(自身を含む): 45760512

約数和(自身を除く): 24948028

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 121, 154, 242, 308, 484, 847, 1694, 3388, 6143, 12286, 24572, 43001, 67573, 86002, 135146, 172004, 270292, 473011, 743303, 946022, 1486606, 1892044, 2973212, 5203121, 10406242, 20812484]

約数ペア:

[(1, 20812484), (2, 10406242), (4, 5203121), (7, 2973212), (11, 1892044), (14, 1486606), (22, 946022), (28, 743303), (44, 473011), (77, 270292), (121, 172004), (154, 135146), (242, 86002), (308, 67573), (484, 43001), (847, 24572), (1694, 12286), (3388, 6143)]