19003985

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3797}}^1$

素因数の和:3833

約数の個数: 32

約数和(自身を含む): 30627072

約数和(自身を除く): 11623087

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 143, 385, 455, 715, 1001, 3797, 5005, 18985, 26579, 41767, 49361, 132895, 208835, 246805, 292369, 345527, 542971, 1461845, 1727635, 2714855, 3800797, 19003985]

約数ペア:

[(1, 19003985), (5, 3800797), (7, 2714855), (11, 1727635), (13, 1461845), (35, 542971), (55, 345527), (65, 292369), (77, 246805), (91, 208835), (143, 132895), (385, 49361), (455, 41767), (715, 26579), (1001, 18985), (3797, 5005)]