21722912

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{15787}}^1$

素因数の和:15840

約数の個数: 24

約数和(自身を含む): 43764336

約数和(自身を除く): 22041424

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 172, 344, 688, 1376, 15787, 31574, 63148, 126296, 252592, 505184, 678841, 1357682, 2715364, 5430728, 10861456, 21722912]

約数ペア:

[(1, 21722912), (2, 10861456), (4, 5430728), (8, 2715364), (16, 1357682), (32, 678841), (43, 505184), (86, 252592), (172, 126296), (344, 63148), (688, 31574), (1376, 15787)]