20927697

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{61}}^1$

素因数の和:150

約数の個数: 48

約数和(自身を含む): 35462016

約数和(自身を除く): 14534319

約数列:

[1, 3, 7, 17, 21, 31, 51, 61, 93, 119, 183, 217, 357, 427, 527, 651, 961, 1037, 1281, 1581, 1891, 2883, 3111, 3689, 5673, 6727, 7259, 11067, 13237, 16337, 20181, 21777, 32147, 39711, 49011, 58621, 96441, 114359, 175863, 225029, 343077, 410347, 675087, 996557, 1231041, 2989671, 6975899, 20927697]

約数ペア:

[(1, 20927697), (3, 6975899), (7, 2989671), (17, 1231041), (21, 996557), (31, 675087), (51, 410347), (61, 343077), (93, 225029), (119, 175863), (183, 114359), (217, 96441), (357, 58621), (427, 49011), (527, 39711), (651, 32147), (961, 21777), (1037, 20181), (1281, 16337), (1581, 13237), (1891, 11067), (2883, 7259), (3111, 6727), (3689, 5673)]