20454291

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{691}}^1$

素因数の和:744

約数の個数: 48

約数和(自身を含む): 36271872

約数和(自身を除く): 15817581

約数列:

[1, 3, 9, 11, 13, 23, 33, 39, 69, 99, 117, 143, 207, 253, 299, 429, 691, 759, 897, 1287, 2073, 2277, 2691, 3289, 6219, 7601, 8983, 9867, 15893, 22803, 26949, 29601, 47679, 68409, 80847, 98813, 143037, 174823, 206609, 296439, 524469, 619827, 889317, 1573407, 1859481, 2272699, 6818097, 20454291]

約数ペア:

[(1, 20454291), (3, 6818097), (9, 2272699), (11, 1859481), (13, 1573407), (23, 889317), (33, 619827), (39, 524469), (69, 296439), (99, 206609), (117, 174823), (143, 143037), (207, 98813), (253, 80847), (299, 68409), (429, 47679), (691, 29601), (759, 26949), (897, 22803), (1287, 15893), (2073, 9867), (2277, 8983), (2691, 7601), (3289, 6219)]