19725185

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{2129}}^1$

素因数の和:2260

約数の個数: 16

約数和(自身を含む): 25304400

約数和(自身を除く): 5579215

約数列:

[1, 5, 17, 85, 109, 545, 1853, 2129, 9265, 10645, 36193, 180965, 232061, 1160305, 3945037, 19725185]

約数ペア:

[(1, 19725185), (5, 3945037), (17, 1160305), (85, 232061), (109, 180965), (545, 36193), (1853, 10645), (2129, 9265)]