28545231

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{263}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 47190528

約数和(自身を除く): 18645297

約数列:

[1, 3, 11, 13, 23, 33, 39, 69, 121, 143, 253, 263, 299, 363, 429, 759, 789, 897, 1573, 2783, 2893, 3289, 3419, 4719, 6049, 8349, 8679, 9867, 10257, 18147, 31823, 36179, 37609, 66539, 78637, 95469, 108537, 112827, 199617, 235911, 413699, 731929, 865007, 1241097, 2195787, 2595021, 9515077, 28545231]

約数ペア:

[(1, 28545231), (3, 9515077), (11, 2595021), (13, 2195787), (23, 1241097), (33, 865007), (39, 731929), (69, 413699), (121, 235911), (143, 199617), (253, 112827), (263, 108537), (299, 95469), (363, 78637), (429, 66539), (759, 37609), (789, 36179), (897, 31823), (1573, 18147), (2783, 10257), (2893, 9867), (3289, 8679), (3419, 8349), (4719, 6049)]