20112741

素因数分解:

$3^2\times {\mathrm{11}}^3\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:135

約数の個数: 48

約数和(自身を含む): 33800832

約数和(自身を除く): 13688091

約数列:

[1, 3, 9, 11, 23, 33, 69, 73, 99, 121, 207, 219, 253, 363, 657, 759, 803, 1089, 1331, 1679, 2277, 2409, 2783, 3993, 5037, 7227, 8349, 8833, 11979, 15111, 18469, 25047, 26499, 30613, 55407, 79497, 91839, 97163, 166221, 203159, 275517, 291489, 609477, 874467, 1828431, 2234749, 6704247, 20112741]

約数ペア:

[(1, 20112741), (3, 6704247), (9, 2234749), (11, 1828431), (23, 874467), (33, 609477), (69, 291489), (73, 275517), (99, 203159), (121, 166221), (207, 97163), (219, 91839), (253, 79497), (363, 55407), (657, 30613), (759, 26499), (803, 25047), (1089, 18469), (1331, 15111), (1679, 11979), (2277, 8833), (2409, 8349), (2783, 7227), (3993, 5037)]