21178108

素因数分解:

$2^2\times 7^1\times {\mathrm{271}}^1\times {\mathrm{2791}}^1$

素因数の和:3073

約数の個数: 24

約数和(自身を含む): 42527744

約数和(自身を除く): 21349636

約数列:

[1, 2, 4, 7, 14, 28, 271, 542, 1084, 1897, 2791, 3794, 5582, 7588, 11164, 19537, 39074, 78148, 756361, 1512722, 3025444, 5294527, 10589054, 21178108]

約数ペア:

[(1, 21178108), (2, 10589054), (4, 5294527), (7, 3025444), (14, 1512722), (28, 756361), (271, 78148), (542, 39074), (1084, 19537), (1897, 11164), (2791, 7588), (3794, 5582)]