21078272

素因数分解:

$2^8\times {\mathrm{137}}^1\times {\mathrm{601}}^1$

素因数の和:754

約数の個数: 36

約数和(自身を含む): 42451836

約数和(自身を除く): 21373564

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 137, 256, 274, 548, 601, 1096, 1202, 2192, 2404, 4384, 4808, 8768, 9616, 17536, 19232, 35072, 38464, 76928, 82337, 153856, 164674, 329348, 658696, 1317392, 2634784, 5269568, 10539136, 21078272]

約数ペア:

[(1, 21078272), (2, 10539136), (4, 5269568), (8, 2634784), (16, 1317392), (32, 658696), (64, 329348), (128, 164674), (137, 153856), (256, 82337), (274, 76928), (548, 38464), (601, 35072), (1096, 19232), (1202, 17536), (2192, 9616), (2404, 8768), (4384, 4808)]