1620087

素因数分解:

$3^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:227

約数の個数: 24

約数和(自身を含む): 2560896

約数和(自身を除く): 940809

約数列:

[1, 3, 7, 21, 49, 103, 107, 147, 309, 321, 721, 749, 2163, 2247, 5047, 5243, 11021, 15141, 15729, 33063, 77147, 231441, 540029, 1620087]

約数ペア:

[(1, 1620087), (3, 540029), (7, 231441), (21, 77147), (49, 33063), (103, 15729), (107, 15141), (147, 11021), (309, 5243), (321, 5047), (721, 2247), (749, 2163)]