19895984

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{379}}^1$

素因数の和:597

約数の個数: 40

約数和(自身を含む): 41135760

約数和(自身を除く): 21239776

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 193, 272, 379, 386, 758, 772, 1516, 1544, 3032, 3088, 3281, 6064, 6443, 6562, 12886, 13124, 25772, 26248, 51544, 52496, 73147, 103088, 146294, 292588, 585176, 1170352, 1243499, 2486998, 4973996, 9947992, 19895984]

約数ペア:

[(1, 19895984), (2, 9947992), (4, 4973996), (8, 2486998), (16, 1243499), (17, 1170352), (34, 585176), (68, 292588), (136, 146294), (193, 103088), (272, 73147), (379, 52496), (386, 51544), (758, 26248), (772, 25772), (1516, 13124), (1544, 12886), (3032, 6562), (3088, 6443), (3281, 6064)]