21000279828

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{12037}}^1\times {\mathrm{13217}}^1$

素因数の和:25272

約数の個数: 48

約数和(自身を含む): 53463743424

約数和(自身を除く): 32463463596

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 12037, 13217, 24074, 26434, 36111, 39651, 48148, 52868, 72222, 79302, 132407, 144444, 145387, 158604, 264814, 290774, 397221, 436161, 529628, 581548, 794442, 872322, 1588884, 1744644, 159093029, 318186058, 477279087, 636372116, 954558174, 1750023319, 1909116348, 3500046638, 5250069957, 7000093276, 10500139914, 21000279828]

約数ペア:

[(1, 21000279828), (2, 10500139914), (3, 7000093276), (4, 5250069957), (6, 3500046638), (11, 1909116348), (12, 1750023319), (22, 954558174), (33, 636372116), (44, 477279087), (66, 318186058), (132, 159093029), (12037, 1744644), (13217, 1588884), (24074, 872322), (26434, 794442), (36111, 581548), (39651, 529628), (48148, 436161), (52868, 397221), (72222, 290774), (79302, 264814), (132407, 158604), (144444, 145387)]