1278333

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1$

素因数の和:313

約数の個数: 24

約数和(自身を含む): 2141568

約数和(自身を除く): 863235

約数列:

[1, 3, 7, 9, 21, 63, 103, 197, 309, 591, 721, 927, 1379, 1773, 2163, 4137, 6489, 12411, 20291, 60873, 142037, 182619, 426111, 1278333]

約数ペア:

[(1, 1278333), (3, 426111), (7, 182619), (9, 142037), (21, 60873), (63, 20291), (103, 12411), (197, 6489), (309, 4137), (591, 2163), (721, 1773), (927, 1379)]