19958488

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{337}}^1\times {\mathrm{673}}^1$

素因数の和:1027

約数の個数: 32

約数和(自身を含む): 41006160

約数和(自身を除く): 21047672

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 337, 673, 674, 1346, 1348, 2692, 2696, 3707, 5384, 7403, 7414, 14806, 14828, 29612, 29656, 59224, 226801, 453602, 907204, 1814408, 2494811, 4989622, 9979244, 19958488]

約数ペア:

[(1, 19958488), (2, 9979244), (4, 4989622), (8, 2494811), (11, 1814408), (22, 907204), (44, 453602), (88, 226801), (337, 59224), (673, 29656), (674, 29612), (1346, 14828), (1348, 14806), (2692, 7414), (2696, 7403), (3707, 5384)]