19804995

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{62873}}^1$

素因数の和:62891

約数の個数: 24

約数和(自身を含む): 39233376

約数和(自身を除く): 19428381

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 62873, 188619, 314365, 440111, 565857, 943095, 1320333, 2200555, 2829285, 3960999, 6601665, 19804995]

約数ペア:

[(1, 19804995), (3, 6601665), (5, 3960999), (7, 2829285), (9, 2200555), (15, 1320333), (21, 943095), (35, 565857), (45, 440111), (63, 314365), (105, 188619), (315, 62873)]