20897445

素因数分解:

$3^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{4451}}^1$

素因数の和:4772

約数の個数: 16

約数和(自身を含む): 33550272

約数和(自身を除く): 12652827

約数列:

[1, 3, 5, 15, 313, 939, 1565, 4451, 4695, 13353, 22255, 66765, 1393163, 4179489, 6965815, 20897445]

約数ペア:

[(1, 20897445), (3, 6965815), (5, 4179489), (15, 1393163), (313, 66765), (939, 22255), (1565, 13353), (4451, 4695)]