18521272

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{281}}^1$

素因数の和:412

約数の個数: 64

約数和(自身を含む): 43856640

約数和(自身を除く): 25335368

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 107, 154, 214, 281, 308, 428, 562, 616, 749, 856, 1124, 1177, 1498, 1967, 2248, 2354, 2996, 3091, 3934, 4708, 5992, 6182, 7868, 8239, 9416, 12364, 15736, 16478, 21637, 24728, 30067, 32956, 43274, 60134, 65912, 86548, 120268, 173096, 210469, 240536, 330737, 420938, 661474, 841876, 1322948, 1683752, 2315159, 2645896, 4630318, 9260636, 18521272]

約数ペア:

[(1, 18521272), (2, 9260636), (4, 4630318), (7, 2645896), (8, 2315159), (11, 1683752), (14, 1322948), (22, 841876), (28, 661474), (44, 420938), (56, 330737), (77, 240536), (88, 210469), (107, 173096), (154, 120268), (214, 86548), (281, 65912), (308, 60134), (428, 43274), (562, 32956), (616, 30067), (749, 24728), (856, 21637), (1124, 16478), (1177, 15736), (1498, 12364), (1967, 9416), (2248, 8239), (2354, 7868), (2996, 6182), (3091, 5992), (3934, 4708)]