20996870531

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{12143939}}^1$

素因数の和:12143978

約数の個数: 16

約数和(自身を含む): 27202425600

約数和(自身を除く): 6205555069

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 12143939, 85007573, 157871207, 230734841, 1105098449, 1615143887, 2999552933, 20996870531]

約数ペア:

[(1, 20996870531), (7, 2999552933), (13, 1615143887), (19, 1105098449), (91, 230734841), (133, 157871207), (247, 85007573), (1729, 12143939)]