21046168

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{18397}}^1$

素因数の和:18427

約数の個数: 32

約数和(自身を含む): 46362960

約数和(自身を除く): 25316792

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 18397, 36794, 73588, 147176, 202367, 239161, 404734, 478322, 809468, 956644, 1618936, 1913288, 2630771, 5261542, 10523084, 21046168]

約数ペア:

[(1, 21046168), (2, 10523084), (4, 5261542), (8, 2630771), (11, 1913288), (13, 1618936), (22, 956644), (26, 809468), (44, 478322), (52, 404734), (88, 239161), (104, 202367), (143, 147176), (286, 73588), (572, 36794), (1144, 18397)]