47125281

素因数分解:

$3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{21787}}^1$

素因数の和:21900

約数の個数: 16

約数和(自身を含む): 72510464

約数和(自身を除く): 25385183

約数列:

[1, 3, 7, 21, 103, 309, 721, 2163, 21787, 65361, 152509, 457527, 2244061, 6732183, 15708427, 47125281]

約数ペア:

[(1, 47125281), (3, 15708427), (7, 6732183), (21, 2244061), (103, 457527), (309, 152509), (721, 65361), (2163, 21787)]