21612544

素因数分解:

$2^{11}\times {\mathrm{61}}^1\times {\mathrm{173}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 44176860

約数和(自身を除く): 22564316

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 128, 173, 244, 256, 346, 488, 512, 692, 976, 1024, 1384, 1952, 2048, 2768, 3904, 5536, 7808, 10553, 11072, 15616, 21106, 22144, 31232, 42212, 44288, 62464, 84424, 88576, 124928, 168848, 177152, 337696, 354304, 675392, 1350784, 2701568, 5403136, 10806272, 21612544]

約数ペア:

[(1, 21612544), (2, 10806272), (4, 5403136), (8, 2701568), (16, 1350784), (32, 675392), (61, 354304), (64, 337696), (122, 177152), (128, 168848), (173, 124928), (244, 88576), (256, 84424), (346, 62464), (488, 44288), (512, 42212), (692, 31232), (976, 22144), (1024, 21106), (1384, 15616), (1952, 11072), (2048, 10553), (2768, 7808), (3904, 5536)]