21349068

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1279}}^1$

素因数の和:1406

約数の個数: 48

約数和(自身を含む): 54190080

約数和(自身を除く): 32841012

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 107, 156, 214, 321, 428, 642, 1279, 1284, 1391, 2558, 2782, 3837, 4173, 5116, 5564, 7674, 8346, 15348, 16627, 16692, 33254, 49881, 66508, 99762, 136853, 199524, 273706, 410559, 547412, 821118, 1642236, 1779089, 3558178, 5337267, 7116356, 10674534, 21349068]

約数ペア:

[(1, 21349068), (2, 10674534), (3, 7116356), (4, 5337267), (6, 3558178), (12, 1779089), (13, 1642236), (26, 821118), (39, 547412), (52, 410559), (78, 273706), (107, 199524), (156, 136853), (214, 99762), (321, 66508), (428, 49881), (642, 33254), (1279, 16692), (1284, 16627), (1391, 15348), (2558, 8346), (2782, 7674), (3837, 5564), (4173, 5116)]