81649287

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{3011}}^1$

素因数の和:3171

約数の個数: 24

約数和(自身を含む): 124046208

約数和(自身を除く): 42396921

約数列:

[1, 3, 9, 23, 69, 131, 207, 393, 1179, 3011, 3013, 9033, 9039, 27099, 27117, 69253, 207759, 394441, 623277, 1183323, 3549969, 9072143, 27216429, 81649287]

約数ペア:

[(1, 81649287), (3, 27216429), (9, 9072143), (23, 3549969), (69, 1183323), (131, 623277), (207, 394441), (393, 207759), (1179, 69253), (3011, 27117), (3013, 27099), (9033, 9039)]