18537816

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:157

約数の個数: 128

約数和(自身を含む): 54743040

約数和(自身を除く): 36205224

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 23, 24, 33, 43, 44, 46, 66, 69, 71, 86, 88, 92, 129, 132, 138, 142, 172, 184, 213, 253, 258, 264, 276, 284, 344, 426, 473, 506, 516, 552, 568, 759, 781, 852, 946, 989, 1012, 1032, 1419, 1518, 1562, 1633, 1704, 1892, 1978, 2024, 2343, 2838, 2967, 3036, 3053, 3124, 3266, 3784, 3956, 4686, 4899, 5676, 5934, 6072, 6106, 6248, 6532, 7912, 9159, 9372, 9798, 10879, 11352, 11868, 12212, 13064, 17963, 18318, 18744, 19596, 21758, 23736, 24424, 32637, 33583, 35926, 36636, 39192, 43516, 53889, 65274, 67166, 70219, 71852, 73272, 87032, 100749, 107778, 130548, 134332, 140438, 143704, 201498, 210657, 215556, 261096, 268664, 280876, 402996, 421314, 431112, 561752, 772409, 805992, 842628, 1544818, 1685256, 2317227, 3089636, 4634454, 6179272, 9268908, 18537816]

約数ペア:

[(1, 18537816), (2, 9268908), (3, 6179272), (4, 4634454), (6, 3089636), (8, 2317227), (11, 1685256), (12, 1544818), (22, 842628), (23, 805992), (24, 772409), (33, 561752), (43, 431112), (44, 421314), (46, 402996), (66, 280876), (69, 268664), (71, 261096), (86, 215556), (88, 210657), (92, 201498), (129, 143704), (132, 140438), (138, 134332), (142, 130548), (172, 107778), (184, 100749), (213, 87032), (253, 73272), (258, 71852), (264, 70219), (276, 67166), (284, 65274), (344, 53889), (426, 43516), (473, 39192), (506, 36636), (516, 35926), (552, 33583), (568, 32637), (759, 24424), (781, 23736), (852, 21758), (946, 19596), (989, 18744), (1012, 18318), (1032, 17963), (1419, 13064), (1518, 12212), (1562, 11868), (1633, 11352), (1704, 10879), (1892, 9798), (1978, 9372), (2024, 9159), (2343, 7912), (2838, 6532), (2967, 6248), (3036, 6106), (3053, 6072), (3124, 5934), (3266, 5676), (3784, 4899), (3956, 4686)]