21007564

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{3301}}^1$

素因数の和:3385

約数の個数: 24

約数和(自身を含む): 38646608

約数和(自身を除く): 17639044

約数列:

[1, 2, 4, 37, 43, 74, 86, 148, 172, 1591, 3182, 3301, 6364, 6602, 13204, 122137, 141943, 244274, 283886, 488548, 567772, 5251891, 10503782, 21007564]

約数ペア:

[(1, 21007564), (2, 10503782), (4, 5251891), (37, 567772), (43, 488548), (74, 283886), (86, 244274), (148, 141943), (172, 122137), (1591, 13204), (3182, 6602), (3301, 6364)]