20910604

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 43464960

約数和(自身を除く): 22554356

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 139, 143, 263, 278, 286, 526, 556, 572, 1052, 1529, 1807, 2893, 3058, 3419, 3614, 5786, 6116, 6838, 7228, 11572, 13676, 19877, 36557, 37609, 39754, 73114, 75218, 79508, 146228, 150436, 402127, 475241, 804254, 950482, 1608508, 1900964, 5227651, 10455302, 20910604]

約数ペア:

[(1, 20910604), (2, 10455302), (4, 5227651), (11, 1900964), (13, 1608508), (22, 950482), (26, 804254), (44, 475241), (52, 402127), (139, 150436), (143, 146228), (263, 79508), (278, 75218), (286, 73114), (526, 39754), (556, 37609), (572, 36557), (1052, 19877), (1529, 13676), (1807, 11572), (2893, 7228), (3058, 6838), (3419, 6116), (3614, 5786)]