19897598

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:205

約数の個数: 48

約数和(自身を含む): 37453824

約数和(自身を除く): 17556226

約数列:

[1, 2, 7, 14, 19, 31, 38, 62, 127, 133, 217, 254, 266, 361, 434, 589, 722, 889, 1178, 1778, 2413, 2527, 3937, 4123, 4826, 5054, 7874, 8246, 11191, 16891, 22382, 27559, 33782, 45847, 55118, 74803, 78337, 91694, 149606, 156674, 320929, 523621, 641858, 1047242, 1421257, 2842514, 9948799, 19897598]

約数ペア:

[(1, 19897598), (2, 9948799), (7, 2842514), (14, 1421257), (19, 1047242), (31, 641858), (38, 523621), (62, 320929), (127, 156674), (133, 149606), (217, 91694), (254, 78337), (266, 74803), (361, 55118), (434, 45847), (589, 33782), (722, 27559), (889, 22382), (1178, 16891), (1778, 11191), (2413, 8246), (2527, 7874), (3937, 5054), (4123, 4826)]