19889584

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{8693}}^1$

素因数の和:8725

約数の個数: 40

約数和(自身を含む): 45278352

約数和(自身を除く): 25388768

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 572, 1144, 2288, 8693, 17386, 34772, 69544, 95623, 113009, 139088, 191246, 226018, 382492, 452036, 764984, 904072, 1243099, 1529968, 1808144, 2486198, 4972396, 9944792, 19889584]

約数ペア:

[(1, 19889584), (2, 9944792), (4, 4972396), (8, 2486198), (11, 1808144), (13, 1529968), (16, 1243099), (22, 904072), (26, 764984), (44, 452036), (52, 382492), (88, 226018), (104, 191246), (143, 139088), (176, 113009), (208, 95623), (286, 69544), (572, 34772), (1144, 17386), (2288, 8693)]