28905327

素因数分解:

$3^2\times {\mathrm{11}}^3\times {\mathrm{19}}^1\times {\mathrm{127}}^1$

素因数の和:185

約数の個数: 48

約数和(自身を含む): 48721920

約数和(自身を除く): 19816593

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 121, 127, 171, 209, 363, 381, 627, 1089, 1143, 1331, 1397, 1881, 2299, 2413, 3993, 4191, 6897, 7239, 11979, 12573, 15367, 20691, 21717, 25289, 26543, 46101, 75867, 79629, 138303, 169037, 227601, 238887, 291973, 507111, 875919, 1521333, 2627757, 3211703, 9635109, 28905327]

約数ペア:

[(1, 28905327), (3, 9635109), (9, 3211703), (11, 2627757), (19, 1521333), (33, 875919), (57, 507111), (99, 291973), (121, 238887), (127, 227601), (171, 169037), (209, 138303), (363, 79629), (381, 75867), (627, 46101), (1089, 26543), (1143, 25289), (1331, 21717), (1397, 20691), (1881, 15367), (2299, 12573), (2413, 11979), (3993, 7239), (4191, 6897)]