217403709

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1\times {\mathrm{6323}}^1$

素因数の和:6556

約数の個数: 16

約数和(自身を含む): 295760832

約数和(自身を除く): 78357123

約数列:

[1, 3, 73, 157, 219, 471, 6323, 11461, 18969, 34383, 461579, 992711, 1384737, 2978133, 72467903, 217403709]

約数ペア:

[(1, 217403709), (3, 72467903), (73, 2978133), (157, 1384737), (219, 992711), (471, 461579), (6323, 34383), (11461, 18969)]