20217862

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{263}}^1$

素因数の和:325

約数の個数: 48

約数和(自身を含む): 38903040

約数和(自身を除く): 18685178

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 119, 133, 238, 263, 266, 289, 323, 526, 578, 646, 1841, 2023, 2261, 3682, 4046, 4471, 4522, 4997, 5491, 8942, 9994, 10982, 31297, 34979, 38437, 62594, 69958, 76007, 76874, 84949, 152014, 169898, 532049, 594643, 1064098, 1189286, 1444133, 2888266, 10108931, 20217862]

約数ペア:

[(1, 20217862), (2, 10108931), (7, 2888266), (14, 1444133), (17, 1189286), (19, 1064098), (34, 594643), (38, 532049), (119, 169898), (133, 152014), (238, 84949), (263, 76874), (266, 76007), (289, 69958), (323, 62594), (526, 38437), (578, 34979), (646, 31297), (1841, 10982), (2023, 9994), (2261, 8942), (3682, 5491), (4046, 4997), (4471, 4522)]