20691034

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:287

約数の個数: 48

約数和(自身を含む): 39501000

約数和(自身を除く): 18809966

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 109, 149, 182, 218, 298, 637, 763, 1043, 1274, 1417, 1526, 1937, 2086, 2834, 3874, 5341, 7301, 9919, 10682, 13559, 14602, 16241, 19838, 27118, 32482, 69433, 94913, 113687, 138866, 189826, 211133, 227374, 422266, 795809, 1477931, 1591618, 2955862, 10345517, 20691034]

約数ペア:

[(1, 20691034), (2, 10345517), (7, 2955862), (13, 1591618), (14, 1477931), (26, 795809), (49, 422266), (91, 227374), (98, 211133), (109, 189826), (149, 138866), (182, 113687), (218, 94913), (298, 69433), (637, 32482), (763, 27118), (1043, 19838), (1274, 16241), (1417, 14602), (1526, 13559), (1937, 10682), (2086, 9919), (2834, 7301), (3874, 5341)]