20402445

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{194309}}^1$

素因数の和:194324

約数の個数: 16

約数和(自身を含む): 37307520

約数和(自身を除く): 16905075

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 194309, 582927, 971545, 1360163, 2914635, 4080489, 6800815, 20402445]

約数ペア:

[(1, 20402445), (3, 6800815), (5, 4080489), (7, 2914635), (15, 1360163), (21, 971545), (35, 582927), (105, 194309)]