19785843

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1$

素因数の和:365

約数の個数: 64

約数和(自身を含む): 37847040

約数和(自身を除く): 18061197

約数列:

[1, 3, 7, 9, 11, 21, 27, 31, 33, 63, 77, 93, 99, 189, 217, 231, 279, 297, 307, 341, 651, 693, 837, 921, 1023, 1953, 2079, 2149, 2387, 2763, 3069, 3377, 5859, 6447, 7161, 8289, 9207, 9517, 10131, 19341, 21483, 23639, 28551, 30393, 58023, 64449, 66619, 70917, 85653, 91179, 104687, 199857, 212751, 256959, 314061, 599571, 638253, 732809, 942183, 1798713, 2198427, 2826549, 6595281, 19785843]

約数ペア:

[(1, 19785843), (3, 6595281), (7, 2826549), (9, 2198427), (11, 1798713), (21, 942183), (27, 732809), (31, 638253), (33, 599571), (63, 314061), (77, 256959), (93, 212751), (99, 199857), (189, 104687), (217, 91179), (231, 85653), (279, 70917), (297, 66619), (307, 64449), (341, 58023), (651, 30393), (693, 28551), (837, 23639), (921, 21483), (1023, 19341), (1953, 10131), (2079, 9517), (2149, 9207), (2387, 8289), (2763, 7161), (3069, 6447), (3377, 5859)]