28478373

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{1091}}^1$

素因数の和:1225

約数の個数: 32

約数和(自身を含む): 47803392

約数和(自身を除く): 19325019

約数列:

[1, 3, 7, 11, 21, 33, 77, 113, 231, 339, 791, 1091, 1243, 2373, 3273, 3729, 7637, 8701, 12001, 22911, 26103, 36003, 84007, 123283, 252021, 369849, 862981, 1356113, 2588943, 4068339, 9492791, 28478373]

約数ペア:

[(1, 28478373), (3, 9492791), (7, 4068339), (11, 2588943), (21, 1356113), (33, 862981), (77, 369849), (113, 252021), (231, 123283), (339, 84007), (791, 36003), (1091, 26103), (1243, 22911), (2373, 12001), (3273, 8701), (3729, 7637)]