19990008

素因数分解:

$2^3\times 3^2\times {\mathrm{277639}}^1$

素因数の和:277651

約数の個数: 24

約数和(自身を含む): 54139800

約数和(自身を除く): 34149792

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 277639, 555278, 832917, 1110556, 1665834, 2221112, 2498751, 3331668, 4997502, 6663336, 9995004, 19990008]

約数ペア:

[(1, 19990008), (2, 9995004), (3, 6663336), (4, 4997502), (6, 3331668), (8, 2498751), (9, 2221112), (12, 1665834), (18, 1110556), (24, 832917), (36, 555278), (72, 277639)]