21161984

素因数分解:

$2^{11}\times {\mathrm{10333}}^1$

素因数の和:10355

約数の個数: 24

約数和(自身を含む): 42317730

約数和(自身を除く): 21155746

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 10333, 20666, 41332, 82664, 165328, 330656, 661312, 1322624, 2645248, 5290496, 10580992, 21161984]

約数ペア:

[(1, 21161984), (2, 10580992), (4, 5290496), (8, 2645248), (16, 1322624), (32, 661312), (64, 330656), (128, 165328), (256, 82664), (512, 41332), (1024, 20666), (2048, 10333)]