20980732

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{223}}^1\times {\mathrm{547}}^1$

素因数の和:817

約数の個数: 24

約数和(自身を含む): 37807616

約数和(自身を除く): 16826884

約数列:

[1, 2, 4, 43, 86, 172, 223, 446, 547, 892, 1094, 2188, 9589, 19178, 23521, 38356, 47042, 94084, 121981, 243962, 487924, 5245183, 10490366, 20980732]

約数ペア:

[(1, 20980732), (2, 10490366), (4, 5245183), (43, 487924), (86, 243962), (172, 121981), (223, 94084), (446, 47042), (547, 38356), (892, 23521), (1094, 19178), (2188, 9589)]