128217859

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1999}}^1$

素因数の和:2048

約数の個数: 32

約数和(自身を含む): 172800000

約数和(自身を除く): 44582141

約数列:

[1, 7, 11, 17, 49, 77, 119, 187, 343, 539, 833, 1309, 1999, 3773, 5831, 9163, 13993, 21989, 33983, 64141, 97951, 153923, 237881, 373813, 685657, 1077461, 1665167, 2616691, 7542227, 11656169, 18316837, 128217859]

約数ペア:

[(1, 128217859), (7, 18316837), (11, 11656169), (17, 7542227), (49, 2616691), (77, 1665167), (119, 1077461), (187, 685657), (343, 373813), (539, 237881), (833, 153923), (1309, 97951), (1999, 64141), (3773, 33983), (5831, 21989), (9163, 13993)]