27680513

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{283}}^1$

素因数の和:536

約数の個数: 16

約数和(自身を含む): 32307840

約数和(自身を除く): 4627327

約数列:

[1, 7, 89, 157, 283, 623, 1099, 1981, 13973, 25187, 44431, 97811, 176309, 311017, 3954359, 27680513]

約数ペア:

[(1, 27680513), (7, 3954359), (89, 311017), (157, 176309), (283, 97811), (623, 44431), (1099, 25187), (1981, 13973)]