20201993794

素因数分解:

$2^1\times {\mathrm{389}}^1\times {\mathrm{2543}}^1\times {\mathrm{10211}}^1$

素因数の和:13145

約数の個数: 16

約数和(自身を含む): 30395813760

約数和(自身を除く): 10193819966

約数列:

[1, 2, 389, 778, 2543, 5086, 10211, 20422, 989227, 1978454, 3972079, 7944158, 25966573, 51933146, 10100996897, 20201993794]

約数ペア:

[(1, 20201993794), (2, 10100996897), (389, 51933146), (778, 25966573), (2543, 7944158), (5086, 3972079), (10211, 1978454), (20422, 989227)]