28153377

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 49900032

約数和(自身を除く): 21746655

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 97, 119, 153, 271, 291, 357, 679, 813, 873, 1071, 1649, 1897, 2037, 2439, 4607, 4947, 5691, 6111, 11543, 13821, 14841, 17073, 26287, 32249, 34629, 41463, 78861, 96747, 103887, 184009, 236583, 290241, 446879, 552027, 1340637, 1656081, 3128153, 4021911, 9384459, 28153377]

約数ペア:

[(1, 28153377), (3, 9384459), (7, 4021911), (9, 3128153), (17, 1656081), (21, 1340637), (51, 552027), (63, 446879), (97, 290241), (119, 236583), (153, 184009), (271, 103887), (291, 96747), (357, 78861), (679, 41463), (813, 34629), (873, 32249), (1071, 26287), (1649, 17073), (1897, 14841), (2037, 13821), (2439, 11543), (4607, 6111), (4947, 5691)]