19220495

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{4129}}^1$

素因数の和:4167

約数の個数: 24

約数和(自身を含む): 28249200

約数和(自身を除く): 9028705

約数列:

[1, 5, 7, 19, 35, 49, 95, 133, 245, 665, 931, 4129, 4655, 20645, 28903, 78451, 144515, 202321, 392255, 549157, 1011605, 2745785, 3844099, 19220495]

約数ペア:

[(1, 19220495), (5, 3844099), (7, 2745785), (19, 1011605), (35, 549157), (49, 392255), (95, 202321), (133, 144515), (245, 78451), (665, 28903), (931, 20645), (4129, 4655)]