21893120

素因数分解:

$2^{12}\times 5^1\times {\mathrm{1069}}^1$

素因数の和:1098

約数の個数: 52

約数和(自身を含む): 52586220

約数和(自身を除く): 30693100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1069, 1280, 2048, 2138, 2560, 4096, 4276, 5120, 5345, 8552, 10240, 10690, 17104, 20480, 21380, 34208, 42760, 68416, 85520, 136832, 171040, 273664, 342080, 547328, 684160, 1094656, 1368320, 2189312, 2736640, 4378624, 5473280, 10946560, 21893120]

約数ペア:

[(1, 21893120), (2, 10946560), (4, 5473280), (5, 4378624), (8, 2736640), (10, 2189312), (16, 1368320), (20, 1094656), (32, 684160), (40, 547328), (64, 342080), (80, 273664), (128, 171040), (160, 136832), (256, 85520), (320, 68416), (512, 42760), (640, 34208), (1024, 21380), (1069, 20480), (1280, 17104), (2048, 10690), (2138, 10240), (2560, 8552), (4096, 5345), (4276, 5120)]