20528068449

素因数分解:

$3^1\times 7^1\times {\mathrm{107}}^2\times {\mathrm{85381}}^1$

素因数の和:85605

約数の個数: 24

約数和(自身を含む): 31576312768

約数和(自身を除く): 11048244319

約数列:

[1, 3, 7, 21, 107, 321, 749, 2247, 11449, 34347, 80143, 85381, 240429, 256143, 597667, 1793001, 9135767, 27407301, 63950369, 191851107, 977527069, 2932581207, 6842689483, 20528068449]

約数ペア:

[(1, 20528068449), (3, 6842689483), (7, 2932581207), (21, 977527069), (107, 191851107), (321, 63950369), (749, 27407301), (2247, 9135767), (11449, 1793001), (34347, 597667), (80143, 256143), (85381, 240429)]