218990884

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{411637}}^1$

素因数の和:411667

約数の個数: 24

約数和(自身を含む): 461034560

約数和(自身を除く): 242043676

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 411637, 823274, 1646548, 2881459, 5762918, 7821103, 11525836, 15642206, 31284412, 54747721, 109495442, 218990884]

約数ペア:

[(1, 218990884), (2, 109495442), (4, 54747721), (7, 31284412), (14, 15642206), (19, 11525836), (28, 7821103), (38, 5762918), (76, 2881459), (133, 1646548), (266, 823274), (532, 411637)]