21687972

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{337}}^1$

素因数の和:548

約数の個数: 48

約数和(自身を含む): 52695552

約数和(自身を除く): 31007580

約数列:

[1, 2, 3, 4, 6, 12, 31, 62, 93, 124, 173, 186, 337, 346, 372, 519, 674, 692, 1011, 1038, 1348, 2022, 2076, 4044, 5363, 10447, 10726, 16089, 20894, 21452, 31341, 32178, 41788, 58301, 62682, 64356, 116602, 125364, 174903, 233204, 349806, 699612, 1807331, 3614662, 5421993, 7229324, 10843986, 21687972]

約数ペア:

[(1, 21687972), (2, 10843986), (3, 7229324), (4, 5421993), (6, 3614662), (12, 1807331), (31, 699612), (62, 349806), (93, 233204), (124, 174903), (173, 125364), (186, 116602), (337, 64356), (346, 62682), (372, 58301), (519, 41788), (674, 32178), (692, 31341), (1011, 21452), (1038, 20894), (1348, 16089), (2022, 10726), (2076, 10447), (4044, 5363)]