21139998729

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{238361}}^1$

素因数の和:238465

約数の個数: 32

約数和(自身を含む): 31303604736

約数和(自身を除く): 10163606007

約数列:

[1, 3, 17, 37, 47, 51, 111, 141, 629, 799, 1739, 1887, 2397, 5217, 29563, 88689, 238361, 715083, 4052137, 8819357, 11202967, 12156411, 26458071, 33608901, 149929069, 190450439, 414509779, 449787207, 571351317, 1243529337, 7046666243, 21139998729]

約数ペア:

[(1, 21139998729), (3, 7046666243), (17, 1243529337), (37, 571351317), (47, 449787207), (51, 414509779), (111, 190450439), (141, 149929069), (629, 33608901), (799, 26458071), (1739, 12156411), (1887, 11202967), (2397, 8819357), (5217, 4052137), (29563, 715083), (88689, 238361)]