19825292

素因数分解:

$2^2\times {\mathrm{139}}^1\times {\mathrm{181}}^1\times {\mathrm{197}}^1$

素因数の和:521

約数の個数: 24

約数和(自身を含む): 35315280

約数和(自身を除く): 15489988

約数列:

[1, 2, 4, 139, 181, 197, 278, 362, 394, 556, 724, 788, 25159, 27383, 35657, 50318, 54766, 71314, 100636, 109532, 142628, 4956323, 9912646, 19825292]

約数ペア:

[(1, 19825292), (2, 9912646), (4, 4956323), (139, 142628), (181, 109532), (197, 100636), (278, 71314), (362, 54766), (394, 50318), (556, 35657), (724, 27383), (788, 25159)]