21171171

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1913}}^1$

素因数の和:1971

約数の個数: 32

約数和(自身を含む): 35278848

約数和(自身を除く): 14107677

約数列:

[1, 3, 7, 17, 21, 31, 51, 93, 119, 217, 357, 527, 651, 1581, 1913, 3689, 5739, 11067, 13391, 32521, 40173, 59303, 97563, 177909, 227647, 415121, 682941, 1008151, 1245363, 3024453, 7057057, 21171171]

約数ペア:

[(1, 21171171), (3, 7057057), (7, 3024453), (17, 1245363), (21, 1008151), (31, 682941), (51, 415121), (93, 227647), (119, 177909), (217, 97563), (357, 59303), (527, 40173), (651, 32521), (1581, 13391), (1913, 11067), (3689, 5739)]