13031281081

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{461}}^1\times {\mathrm{16349}}^1$

素因数の和:16849

約数の個数: 32

約数和(自身を含む): 16920288000

約数和(自身を除く): 3889006919

約数列:

[1, 7, 13, 19, 91, 133, 247, 461, 1729, 3227, 5993, 8759, 16349, 41951, 61313, 113867, 114443, 212537, 310631, 797069, 1487759, 2174417, 4038203, 7536889, 28267421, 52758223, 97979557, 143200891, 685856899, 1002406237, 1861611583, 13031281081]

約数ペア:

[(1, 13031281081), (7, 1861611583), (13, 1002406237), (19, 685856899), (91, 143200891), (133, 97979557), (247, 52758223), (461, 28267421), (1729, 7536889), (3227, 4038203), (5993, 2174417), (8759, 1487759), (16349, 797069), (41951, 310631), (61313, 212537), (113867, 114443)]