21640611566

素因数分解:

$2^1\times 7^4\times {\mathrm{71}}^1\times {\mathrm{63473}}^1$

素因数の和:63574

約数の個数: 40

約数和(自身を含む): 38402785584

約数和(自身を除く): 16762174018

約数列:

[1, 2, 7, 14, 49, 71, 98, 142, 343, 497, 686, 994, 2401, 3479, 4802, 6958, 24353, 48706, 63473, 126946, 170471, 340942, 444311, 888622, 3110177, 4506583, 6220354, 9013166, 21771239, 31546081, 43542478, 63092162, 152398673, 220822567, 304797346, 441645134, 1545757969, 3091515938, 10820305783, 21640611566]

約数ペア:

[(1, 21640611566), (2, 10820305783), (7, 3091515938), (14, 1545757969), (49, 441645134), (71, 304797346), (98, 220822567), (142, 152398673), (343, 63092162), (497, 43542478), (686, 31546081), (994, 21771239), (2401, 9013166), (3479, 6220354), (4802, 4506583), (6958, 3110177), (24353, 888622), (48706, 444311), (63473, 340942), (126946, 170471)]