18285918

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{41}}^2$

素因数の和:138

約数の個数: 72

約数和(自身を含む): 44784216

約数和(自身を除く): 26498298

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 41, 42, 49, 74, 82, 98, 111, 123, 147, 222, 246, 259, 287, 294, 518, 574, 777, 861, 1517, 1554, 1681, 1722, 1813, 2009, 3034, 3362, 3626, 4018, 4551, 5043, 5439, 6027, 9102, 10086, 10619, 10878, 11767, 12054, 21238, 23534, 31857, 35301, 62197, 63714, 70602, 74333, 82369, 124394, 148666, 164738, 186591, 222999, 247107, 373182, 435379, 445998, 494214, 870758, 1306137, 2612274, 3047653, 6095306, 9142959, 18285918]

約数ペア:

[(1, 18285918), (2, 9142959), (3, 6095306), (6, 3047653), (7, 2612274), (14, 1306137), (21, 870758), (37, 494214), (41, 445998), (42, 435379), (49, 373182), (74, 247107), (82, 222999), (98, 186591), (111, 164738), (123, 148666), (147, 124394), (222, 82369), (246, 74333), (259, 70602), (287, 63714), (294, 62197), (518, 35301), (574, 31857), (777, 23534), (861, 21238), (1517, 12054), (1554, 11767), (1681, 10878), (1722, 10619), (1813, 10086), (2009, 9102), (3034, 6027), (3362, 5439), (3626, 5043), (4018, 4551)]