18986422

素因数分解:

$2^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{2129}}^1$

素因数の和:2165

約数の個数: 32

約数和(自身を含む): 35784000

約数和(自身を除く): 16797578

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 182, 343, 637, 686, 1274, 2129, 4258, 4459, 8918, 14903, 27677, 29806, 55354, 104321, 193739, 208642, 387478, 730247, 1356173, 1460494, 2712346, 9493211, 18986422]

約数ペア:

[(1, 18986422), (2, 9493211), (7, 2712346), (13, 1460494), (14, 1356173), (26, 730247), (49, 387478), (91, 208642), (98, 193739), (182, 104321), (343, 55354), (637, 29806), (686, 27677), (1274, 14903), (2129, 8918), (4258, 4459)]