19781445

素因数分解:

$3^1\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{1307}}^1$

素因数の和:2324

約数の個数: 16

約数和(自身を含む): 31705920

約数和(自身を除く): 11924475

約数列:

[1, 3, 5, 15, 1009, 1307, 3027, 3921, 5045, 6535, 15135, 19605, 1318763, 3956289, 6593815, 19781445]

約数ペア:

[(1, 19781445), (3, 6593815), (5, 3956289), (15, 1318763), (1009, 19605), (1307, 15135), (3027, 6535), (3921, 5045)]