20873259

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 35043840

約数和(自身を除く): 14170581

約数列:

[1, 3, 9, 11, 23, 33, 69, 89, 99, 103, 207, 253, 267, 309, 759, 801, 927, 979, 1133, 2047, 2277, 2369, 2937, 3399, 6141, 7107, 8811, 9167, 10197, 18423, 21321, 22517, 26059, 27501, 67551, 78177, 82503, 100837, 202653, 210841, 234531, 302511, 632523, 907533, 1897569, 2319251, 6957753, 20873259]

約数ペア:

[(1, 20873259), (3, 6957753), (9, 2319251), (11, 1897569), (23, 907533), (33, 632523), (69, 302511), (89, 234531), (99, 210841), (103, 202653), (207, 100837), (253, 82503), (267, 78177), (309, 67551), (759, 27501), (801, 26059), (927, 22517), (979, 21321), (1133, 18423), (2047, 10197), (2277, 9167), (2369, 8811), (2937, 7107), (3399, 6141)]