389885727

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{35911}}^1$

素因数の和:35979

約数の個数: 32

約数和(自身を含む): 661929984

約数和(自身を除く): 272044257

約数列:

[1, 3, 7, 11, 21, 33, 47, 77, 141, 231, 329, 517, 987, 1551, 3619, 10857, 35911, 107733, 251377, 395021, 754131, 1185063, 1687817, 2765147, 5063451, 8295441, 11814719, 18565987, 35444157, 55697961, 129961909, 389885727]

約数ペア:

[(1, 389885727), (3, 129961909), (7, 55697961), (11, 35444157), (21, 18565987), (33, 11814719), (47, 8295441), (77, 5063451), (141, 2765147), (231, 1687817), (329, 1185063), (517, 754131), (987, 395021), (1551, 251377), (3619, 107733), (10857, 35911)]