21947031

素因数分解:

$3^5\times {\mathrm{37}}^1\times {\mathrm{2441}}^1$

素因数の和:2493

約数の個数: 24

約数和(自身を含む): 33777744

約数和(自身を除く): 11830713

約数列:

[1, 3, 9, 27, 37, 81, 111, 243, 333, 999, 2441, 2997, 7323, 8991, 21969, 65907, 90317, 197721, 270951, 593163, 812853, 2438559, 7315677, 21947031]

約数ペア:

[(1, 21947031), (3, 7315677), (9, 2438559), (27, 812853), (37, 593163), (81, 270951), (111, 197721), (243, 90317), (333, 65907), (999, 21969), (2441, 8991), (2997, 7323)]