21000612366

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{10510817}}^1$

素因数の和:10510865

約数の個数: 32

約数和(自身を含む): 47929330080

約数和(自身を除く): 26928717714

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 222, 333, 666, 999, 1998, 10510817, 21021634, 31532451, 63064902, 94597353, 189194706, 283792059, 388900229, 567584118, 777800458, 1166700687, 2333401374, 3500102061, 7000204122, 10500306183, 21000612366]

約数ペア:

[(1, 21000612366), (2, 10500306183), (3, 7000204122), (6, 3500102061), (9, 2333401374), (18, 1166700687), (27, 777800458), (37, 567584118), (54, 388900229), (74, 283792059), (111, 189194706), (222, 94597353), (333, 63064902), (666, 31532451), (999, 21021634), (1998, 10510817)]