28318521

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{211}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 48722688

約数和(自身を除く): 20404167

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 83, 147, 211, 231, 249, 539, 581, 633, 913, 1477, 1617, 1743, 2321, 2739, 4067, 4431, 6391, 6963, 10339, 12201, 16247, 17513, 19173, 31017, 44737, 48741, 52539, 113729, 122591, 134211, 192643, 341187, 367773, 577929, 858137, 1348501, 2574411, 4045503, 9439507, 28318521]

約数ペア:

[(1, 28318521), (3, 9439507), (7, 4045503), (11, 2574411), (21, 1348501), (33, 858137), (49, 577929), (77, 367773), (83, 341187), (147, 192643), (211, 134211), (231, 122591), (249, 113729), (539, 52539), (581, 48741), (633, 44737), (913, 31017), (1477, 19173), (1617, 17513), (1743, 16247), (2321, 12201), (2739, 10339), (4067, 6963), (4431, 6391)]