28699713

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^2\times {\mathrm{271}}^1$

素因数の和:366

約数の個数: 36

約数和(自身を含む): 48740224

約数和(自身を除く): 20040511

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 271, 287, 369, 813, 861, 1681, 1897, 2439, 2583, 5043, 5691, 11111, 11767, 15129, 17073, 33333, 35301, 77777, 99999, 105903, 233331, 455551, 699993, 1366653, 3188857, 4099959, 9566571, 28699713]

約数ペア:

[(1, 28699713), (3, 9566571), (7, 4099959), (9, 3188857), (21, 1366653), (41, 699993), (63, 455551), (123, 233331), (271, 105903), (287, 99999), (369, 77777), (813, 35301), (861, 33333), (1681, 17073), (1897, 15129), (2439, 11767), (2583, 11111), (5043, 5691)]