18489394

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:199

約数の個数: 64

約数和(自身を含む): 37324800

約数和(自身を除く): 18835406

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 71, 77, 89, 133, 142, 154, 178, 209, 266, 418, 497, 623, 781, 979, 994, 1246, 1349, 1463, 1562, 1691, 1958, 2698, 2926, 3382, 5467, 6319, 6853, 9443, 10934, 11837, 12638, 13706, 14839, 18601, 18886, 23674, 29678, 37202, 44233, 69509, 88466, 103873, 120061, 130207, 139018, 207746, 240122, 260414, 486563, 840427, 973126, 1320671, 1680854, 2641342, 9244697, 18489394]

約数ペア:

[(1, 18489394), (2, 9244697), (7, 2641342), (11, 1680854), (14, 1320671), (19, 973126), (22, 840427), (38, 486563), (71, 260414), (77, 240122), (89, 207746), (133, 139018), (142, 130207), (154, 120061), (178, 103873), (209, 88466), (266, 69509), (418, 44233), (497, 37202), (623, 29678), (781, 23674), (979, 18886), (994, 18601), (1246, 14839), (1349, 13706), (1463, 12638), (1562, 11837), (1691, 10934), (1958, 9443), (2698, 6853), (2926, 6319), (3382, 5467)]