18949206537

素因数分解:

$3^2\times {\mathrm{31}}^2\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{239}}^1$

素因数の和:499

約数の個数: 72

約数和(自身を含む): 28998777600

約数和(自身を除く): 10049571063

約数列:

[1, 3, 9, 31, 89, 93, 103, 239, 267, 279, 309, 717, 801, 927, 961, 2151, 2759, 2883, 3193, 7409, 8277, 8649, 9167, 9579, 21271, 22227, 24617, 24831, 27501, 28737, 63813, 66681, 73851, 82503, 85529, 98983, 191439, 221553, 229679, 256587, 284177, 296949, 659401, 689037, 763127, 769761, 852531, 890847, 1978203, 2067111, 2190913, 2289381, 2557593, 5934609, 6572739, 6868143, 8809487, 19718217, 20441431, 23656937, 26428461, 61324293, 67918303, 70970811, 79285383, 183972879, 203754909, 212912433, 611264727, 2105467393, 6316402179, 18949206537]

約数ペア:

[(1, 18949206537), (3, 6316402179), (9, 2105467393), (31, 611264727), (89, 212912433), (93, 203754909), (103, 183972879), (239, 79285383), (267, 70970811), (279, 67918303), (309, 61324293), (717, 26428461), (801, 23656937), (927, 20441431), (961, 19718217), (2151, 8809487), (2759, 6868143), (2883, 6572739), (3193, 5934609), (7409, 2557593), (8277, 2289381), (8649, 2190913), (9167, 2067111), (9579, 1978203), (21271, 890847), (22227, 852531), (24617, 769761), (24831, 763127), (27501, 689037), (28737, 659401), (63813, 296949), (66681, 284177), (73851, 256587), (82503, 229679), (85529, 221553), (98983, 191439)]