20157104

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{6737}}^1$

素因数の和:6773

約数の個数: 40

約数和(自身を含む): 45117648

約数和(自身を除く): 24960544

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 136, 176, 187, 272, 374, 748, 1496, 2992, 6737, 13474, 26948, 53896, 74107, 107792, 114529, 148214, 229058, 296428, 458116, 592856, 916232, 1185712, 1259819, 1832464, 2519638, 5039276, 10078552, 20157104]

約数ペア:

[(1, 20157104), (2, 10078552), (4, 5039276), (8, 2519638), (11, 1832464), (16, 1259819), (17, 1185712), (22, 916232), (34, 592856), (44, 458116), (68, 296428), (88, 229058), (136, 148214), (176, 114529), (187, 107792), (272, 74107), (374, 53896), (748, 26948), (1496, 13474), (2992, 6737)]