19478718

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1$

素因数の和:303

約数の個数: 80

約数和(自身を含む): 50703840

約数和(自身を除く): 31225122

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 89, 126, 162, 178, 189, 193, 267, 378, 386, 534, 567, 579, 623, 801, 1134, 1158, 1246, 1351, 1602, 1737, 1869, 2403, 2702, 3474, 3738, 4053, 4806, 5211, 5607, 7209, 8106, 10422, 11214, 12159, 14418, 15633, 16821, 17177, 24318, 31266, 33642, 34354, 36477, 50463, 51531, 72954, 100926, 103062, 109431, 120239, 154593, 218862, 240478, 309186, 360717, 463779, 721434, 927558, 1082151, 1391337, 2164302, 2782674, 3246453, 6492906, 9739359, 19478718]

約数ペア:

[(1, 19478718), (2, 9739359), (3, 6492906), (6, 3246453), (7, 2782674), (9, 2164302), (14, 1391337), (18, 1082151), (21, 927558), (27, 721434), (42, 463779), (54, 360717), (63, 309186), (81, 240478), (89, 218862), (126, 154593), (162, 120239), (178, 109431), (189, 103062), (193, 100926), (267, 72954), (378, 51531), (386, 50463), (534, 36477), (567, 34354), (579, 33642), (623, 31266), (801, 24318), (1134, 17177), (1158, 16821), (1246, 15633), (1351, 14418), (1602, 12159), (1737, 11214), (1869, 10422), (2403, 8106), (2702, 7209), (3474, 5607), (3738, 5211), (4053, 4806)]