209903124

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{406789}}^1$

素因数の和:406839

約数の個数: 24

約数和(自身を含む): 501165280

約数和(自身を除く): 291262156

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 406789, 813578, 1220367, 1627156, 2440734, 4881468, 17491927, 34983854, 52475781, 69967708, 104951562, 209903124]

約数ペア:

[(1, 209903124), (2, 104951562), (3, 69967708), (4, 52475781), (6, 34983854), (12, 17491927), (43, 4881468), (86, 2440734), (129, 1627156), (172, 1220367), (258, 813578), (516, 406789)]