20479827

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{337}}^1\times {\mathrm{431}}^1$

素因数の和:818

約数の個数: 16

約数和(自身を含む): 28035072

約数和(自身を除く): 7555245

約数列:

[1, 3, 47, 141, 337, 431, 1011, 1293, 15839, 20257, 47517, 60771, 145247, 435741, 6826609, 20479827]

約数ペア:

[(1, 20479827), (3, 6826609), (47, 435741), (141, 145247), (337, 60771), (431, 47517), (1011, 20257), (1293, 15839)]