19854895

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{2143}}^1$

素因数の和:2274

約数の個数: 16

約数和(自身を含む): 25470720

約数和(自身を除く): 5615825

約数列:

[1, 5, 17, 85, 109, 545, 1853, 2143, 9265, 10715, 36431, 182155, 233587, 1167935, 3970979, 19854895]

約数ペア:

[(1, 19854895), (5, 3970979), (17, 1167935), (85, 233587), (109, 182155), (545, 36431), (1853, 10715), (2143, 9265)]