20844984904

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{643}}^1\times {\mathrm{66431}}^1$

素因数の和:67141

約数の個数: 32

約数和(自身を含む): 39787453440

約数和(自身を除く): 18942468536

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 643, 1286, 2572, 5144, 39223, 66431, 78446, 132862, 156892, 265724, 313784, 531448, 4052291, 8104582, 16209164, 32418328, 42715133, 85430266, 170860532, 341721064, 2605623113, 5211246226, 10422492452, 20844984904]

約数ペア:

[(1, 20844984904), (2, 10422492452), (4, 5211246226), (8, 2605623113), (61, 341721064), (122, 170860532), (244, 85430266), (488, 42715133), (643, 32418328), (1286, 16209164), (2572, 8104582), (5144, 4052291), (39223, 531448), (66431, 313784), (78446, 265724), (132862, 156892)]