20748959

素因数分解:

$7^1\times {\mathrm{11}}^3\times {\mathrm{17}}^1\times {\mathrm{131}}^1$

素因数の和:188

約数の個数: 32

約数和(自身を含む): 27827712

約数和(自身を除く): 7078753

約数列:

[1, 7, 11, 17, 77, 119, 121, 131, 187, 847, 917, 1309, 1331, 1441, 2057, 2227, 9317, 10087, 14399, 15589, 15851, 22627, 24497, 110957, 158389, 171479, 174361, 269467, 1220527, 1886269, 2964137, 20748959]

約数ペア:

[(1, 20748959), (7, 2964137), (11, 1886269), (17, 1220527), (77, 269467), (119, 174361), (121, 171479), (131, 158389), (187, 110957), (847, 24497), (917, 22627), (1309, 15851), (1331, 15589), (1441, 14399), (2057, 10087), (2227, 9317)]