20507984

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{10771}}^1$

素因数の和:10803

約数の個数: 40

約数和(自身を含む): 48086208

約数和(自身を除く): 27578224

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 10771, 21542, 43084, 75397, 86168, 150794, 172336, 183107, 301588, 366214, 603176, 732428, 1206352, 1281749, 1464856, 2563498, 2929712, 5126996, 10253992, 20507984]

約数ペア:

[(1, 20507984), (2, 10253992), (4, 5126996), (7, 2929712), (8, 2563498), (14, 1464856), (16, 1281749), (17, 1206352), (28, 732428), (34, 603176), (56, 366214), (68, 301588), (112, 183107), (119, 172336), (136, 150794), (238, 86168), (272, 75397), (476, 43084), (952, 21542), (1904, 10771)]