28807933

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 40219200

約数和(自身を除く): 11411267

約数列:

[1, 7, 11, 19, 29, 49, 77, 97, 133, 203, 209, 319, 539, 551, 679, 931, 1067, 1421, 1463, 1843, 2233, 2813, 3857, 4753, 6061, 7469, 10241, 12901, 15631, 19691, 20273, 26999, 30943, 42427, 52283, 53447, 90307, 137837, 141911, 216601, 296989, 374129, 587917, 993377, 1516207, 2618903, 4115419, 28807933]

約数ペア:

[(1, 28807933), (7, 4115419), (11, 2618903), (19, 1516207), (29, 993377), (49, 587917), (77, 374129), (97, 296989), (133, 216601), (203, 141911), (209, 137837), (319, 90307), (539, 53447), (551, 52283), (679, 42427), (931, 30943), (1067, 26999), (1421, 20273), (1463, 19691), (1843, 15631), (2233, 12901), (2813, 10241), (3857, 7469), (4753, 6061)]