1388886961

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{7121}}^1$

素因数の和:7305

約数の個数: 32

約数和(自身を含む): 1846022400

約数和(自身を除く): 457135439

約数列:

[1, 7, 11, 17, 77, 119, 149, 187, 1043, 1309, 1639, 2533, 7121, 11473, 17731, 27863, 49847, 78331, 121057, 195041, 548317, 847399, 1061029, 1331627, 7427203, 9321389, 11671319, 18037493, 81699233, 126262451, 198412423, 1388886961]

約数ペア:

[(1, 1388886961), (7, 198412423), (11, 126262451), (17, 81699233), (77, 18037493), (119, 11671319), (149, 9321389), (187, 7427203), (1043, 1331627), (1309, 1061029), (1639, 847399), (2533, 548317), (7121, 195041), (11473, 121057), (17731, 78331), (27863, 49847)]