21521982097

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{35083}}^1$

素因数の和:35389

約数の個数: 32

約数和(自身を含む): 27806736384

約数和(自身を除く): 6284754287

約数列:

[1, 7, 11, 31, 77, 217, 257, 341, 1799, 2387, 2827, 7967, 19789, 35083, 55769, 87637, 245581, 385913, 613459, 1087573, 2701391, 7613011, 9016331, 11963303, 63114317, 83743121, 99179641, 279506261, 694257487, 1956543827, 3074568871, 21521982097]

約数ペア:

[(1, 21521982097), (7, 3074568871), (11, 1956543827), (31, 694257487), (77, 279506261), (217, 99179641), (257, 83743121), (341, 63114317), (1799, 11963303), (2387, 9016331), (2827, 7613011), (7967, 2701391), (19789, 1087573), (35083, 613459), (55769, 385913), (87637, 245581)]