19958493

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{479}}^1$

素因数の和:561

約数の個数: 32

約数和(自身を含む): 30412800

約数和(自身を除く): 10454307

約数列:

[1, 3, 17, 19, 43, 51, 57, 129, 323, 479, 731, 817, 969, 1437, 2193, 2451, 8143, 9101, 13889, 20597, 24429, 27303, 41667, 61791, 154717, 350149, 391343, 464151, 1050447, 1174029, 6652831, 19958493]

約数ペア:

[(1, 19958493), (3, 6652831), (17, 1174029), (19, 1050447), (43, 464151), (51, 391343), (57, 350149), (129, 154717), (323, 61791), (479, 41667), (731, 27303), (817, 24429), (969, 20597), (1437, 13889), (2193, 9101), (2451, 8143)]