21037852

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{647}}^1\times {\mathrm{739}}^1$

素因数の和:1401

約数の個数: 24

約数和(自身を含む): 40279680

約数和(自身を除く): 19241828

約数列:

[1, 2, 4, 11, 22, 44, 647, 739, 1294, 1478, 2588, 2956, 7117, 8129, 14234, 16258, 28468, 32516, 478133, 956266, 1912532, 5259463, 10518926, 21037852]

約数ペア:

[(1, 21037852), (2, 10518926), (4, 5259463), (11, 1912532), (22, 956266), (44, 478133), (647, 32516), (739, 28468), (1294, 16258), (1478, 14234), (2588, 8129), (2956, 7117)]