20004642

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{613}}^1$

素因数の和:672

約数の個数: 72

約数和(自身を含む): 51867036

約数和(自身を除く): 31862394

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 37, 42, 49, 63, 74, 98, 111, 126, 147, 222, 259, 294, 333, 441, 518, 613, 666, 777, 882, 1226, 1554, 1813, 1839, 2331, 3626, 3678, 4291, 4662, 5439, 5517, 8582, 10878, 11034, 12873, 16317, 22681, 25746, 30037, 32634, 38619, 45362, 60074, 68043, 77238, 90111, 136086, 158767, 180222, 204129, 270333, 317534, 408258, 476301, 540666, 952602, 1111369, 1428903, 2222738, 2857806, 3334107, 6668214, 10002321, 20004642]

約数ペア:

[(1, 20004642), (2, 10002321), (3, 6668214), (6, 3334107), (7, 2857806), (9, 2222738), (14, 1428903), (18, 1111369), (21, 952602), (37, 540666), (42, 476301), (49, 408258), (63, 317534), (74, 270333), (98, 204129), (111, 180222), (126, 158767), (147, 136086), (222, 90111), (259, 77238), (294, 68043), (333, 60074), (441, 45362), (518, 38619), (613, 32634), (666, 30037), (777, 25746), (882, 22681), (1226, 16317), (1554, 12873), (1813, 11034), (1839, 10878), (2331, 8582), (3626, 5517), (3678, 5439), (4291, 4662)]