28570521

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{18637}}^1$

素因数の和:18720

約数の個数: 16

約数和(自身を含む): 44134784

約数和(自身を除く): 15564263

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 18637, 55911, 130459, 391377, 1360501, 4081503, 9523507, 28570521]

約数ペア:

[(1, 28570521), (3, 9523507), (7, 4081503), (21, 1360501), (73, 391377), (219, 130459), (511, 55911), (1533, 18637)]