20515804562

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{243673}}^1$

素因数の和:243818

約数の個数: 32

約数和(自身を含む): 34738165440

約数和(自身を除く): 14222360878

約数列:

[1, 2, 11, 22, 43, 86, 89, 178, 473, 946, 979, 1958, 3827, 7654, 42097, 84194, 243673, 487346, 2680403, 5360806, 10477939, 20955878, 21686897, 43373794, 115257329, 230514658, 238555867, 477111734, 932536571, 1865073142, 10257902281, 20515804562]

約数ペア:

[(1, 20515804562), (2, 10257902281), (11, 1865073142), (22, 932536571), (43, 477111734), (86, 238555867), (89, 230514658), (178, 115257329), (473, 43373794), (946, 21686897), (979, 20955878), (1958, 10477939), (3827, 5360806), (7654, 2680403), (42097, 487346), (84194, 243673)]