28806831

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 46831200

約数和(自身を除く): 18024369

約数列:

[1, 3, 9, 19, 29, 37, 57, 87, 111, 157, 171, 261, 333, 471, 551, 703, 1073, 1413, 1653, 2109, 2983, 3219, 4553, 4959, 5809, 6327, 8949, 9657, 13659, 17427, 20387, 26847, 40977, 52281, 61161, 86507, 110371, 168461, 183483, 259521, 331113, 505383, 778563, 993339, 1516149, 3200759, 9602277, 28806831]

約数ペア:

[(1, 28806831), (3, 9602277), (9, 3200759), (19, 1516149), (29, 993339), (37, 778563), (57, 505383), (87, 331113), (111, 259521), (157, 183483), (171, 168461), (261, 110371), (333, 86507), (471, 61161), (551, 52281), (703, 40977), (1073, 26847), (1413, 20387), (1653, 17427), (2109, 13659), (2983, 9657), (3219, 8949), (4553, 6327), (4959, 5809)]