19688123

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{193}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 26073600

約数和(自身を除く): 6385477

約数列:

[1, 7, 13, 19, 59, 91, 133, 193, 247, 413, 767, 1121, 1351, 1729, 2509, 3667, 5369, 7847, 11387, 14573, 17563, 25669, 47671, 79709, 102011, 148031, 216353, 333697, 1036217, 1514471, 2812589, 19688123]

約数ペア:

[(1, 19688123), (7, 2812589), (13, 1514471), (19, 1036217), (59, 333697), (91, 216353), (133, 148031), (193, 102011), (247, 79709), (413, 47671), (767, 25669), (1121, 17563), (1351, 14573), (1729, 11387), (2509, 7847), (3667, 5369)]