21013129852

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4639}}^1\times {\mathrm{7919}}^1$

素因数の和:12586

約数の個数: 48

約数和(自身を含む): 43216588800

約数和(自身を除く): 22203458948

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572, 4639, 7919, 9278, 15838, 18556, 31676, 51029, 60307, 87109, 102058, 102947, 120614, 174218, 204116, 205894, 241228, 348436, 411788, 663377, 1132417, 1326754, 2264834, 2653508, 4529668, 36736241, 73472482, 146944964, 404098651, 477571133, 808197302, 955142266, 1616394604, 1910284532, 5253282463, 10506564926, 21013129852]

約数ペア:

[(1, 21013129852), (2, 10506564926), (4, 5253282463), (11, 1910284532), (13, 1616394604), (22, 955142266), (26, 808197302), (44, 477571133), (52, 404098651), (143, 146944964), (286, 73472482), (572, 36736241), (4639, 4529668), (7919, 2653508), (9278, 2264834), (15838, 1326754), (18556, 1132417), (31676, 663377), (51029, 411788), (60307, 348436), (87109, 241228), (102058, 205894), (102947, 204116), (120614, 174218)]