19946885

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{211}}^1$

素因数の和:333

約数の個数: 32

約数和(自身を含む): 28614912

約数和(自身を除く): 8668027

約数列:

[1, 5, 7, 35, 37, 73, 185, 211, 259, 365, 511, 1055, 1295, 1477, 2555, 2701, 7385, 7807, 13505, 15403, 18907, 39035, 54649, 77015, 94535, 107821, 273245, 539105, 569911, 2849555, 3989377, 19946885]

約数ペア:

[(1, 19946885), (5, 3989377), (7, 2849555), (35, 569911), (37, 539105), (73, 273245), (185, 107821), (211, 94535), (259, 77015), (365, 54649), (511, 39035), (1055, 18907), (1295, 15403), (1477, 13505), (2555, 7807), (2701, 7385)]