20288824

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{439}}^1$

素因数の和:607

約数の個数: 32

約数和(自身を含む): 39204000

約数和(自身を除く): 18915176

約数列:

[1, 2, 4, 8, 53, 106, 109, 212, 218, 424, 436, 439, 872, 878, 1756, 3512, 5777, 11554, 23108, 23267, 46216, 46534, 47851, 93068, 95702, 186136, 191404, 382808, 2536103, 5072206, 10144412, 20288824]

約数ペア:

[(1, 20288824), (2, 10144412), (4, 5072206), (8, 2536103), (53, 382808), (106, 191404), (109, 186136), (212, 95702), (218, 93068), (424, 47851), (436, 46534), (439, 46216), (872, 23267), (878, 23108), (1756, 11554), (3512, 5777)]