21573456

素因数分解:

$2^4\times 3^1\times {\mathrm{509}}^1\times {\mathrm{883}}^1$

素因数の和:1403

約数の個数: 40

約数和(自身を含む): 55904160

約数和(自身を除く): 34330704

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 509, 883, 1018, 1527, 1766, 2036, 2649, 3054, 3532, 4072, 5298, 6108, 7064, 8144, 10596, 12216, 14128, 21192, 24432, 42384, 449447, 898894, 1348341, 1797788, 2696682, 3595576, 5393364, 7191152, 10786728, 21573456]

約数ペア:

[(1, 21573456), (2, 10786728), (3, 7191152), (4, 5393364), (6, 3595576), (8, 2696682), (12, 1797788), (16, 1348341), (24, 898894), (48, 449447), (509, 42384), (883, 24432), (1018, 21192), (1527, 14128), (1766, 12216), (2036, 10596), (2649, 8144), (3054, 7064), (3532, 6108), (4072, 5298)]