20491196

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{193}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 41717760

約数和(自身を除く): 21226564

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 127, 193, 209, 254, 386, 418, 508, 772, 836, 1397, 2123, 2413, 2794, 3667, 4246, 4826, 5588, 7334, 8492, 9652, 14668, 24511, 26543, 40337, 49022, 53086, 80674, 98044, 106172, 161348, 269621, 465709, 539242, 931418, 1078484, 1862836, 5122799, 10245598, 20491196]

約数ペア:

[(1, 20491196), (2, 10245598), (4, 5122799), (11, 1862836), (19, 1078484), (22, 931418), (38, 539242), (44, 465709), (76, 269621), (127, 161348), (193, 106172), (209, 98044), (254, 80674), (386, 53086), (418, 49022), (508, 40337), (772, 26543), (836, 24511), (1397, 14668), (2123, 9652), (2413, 8492), (2794, 7334), (3667, 5588), (4246, 4826)]