20558972

素因数分解:

$2^2\times 7^1\times {\mathrm{257}}^1\times {\mathrm{2857}}^1$

素因数の和:3125

約数の個数: 24

約数和(自身を含む): 41292384

約数和(自身を除く): 20733412

約数列:

[1, 2, 4, 7, 14, 28, 257, 514, 1028, 1799, 2857, 3598, 5714, 7196, 11428, 19999, 39998, 79996, 734249, 1468498, 2936996, 5139743, 10279486, 20558972]

約数ペア:

[(1, 20558972), (2, 10279486), (4, 5139743), (7, 2936996), (14, 1468498), (28, 734249), (257, 79996), (514, 39998), (1028, 19999), (1799, 11428), (2857, 7196), (3598, 5714)]