20996479

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{2417}}^1$

素因数の和:2514

約数の個数: 16

約数和(自身を含む): 25766208

約数和(自身を除く): 4769729

約数列:

[1, 7, 17, 73, 119, 511, 1241, 2417, 8687, 16919, 41089, 176441, 287623, 1235087, 2999497, 20996479]

約数ペア:

[(1, 20996479), (7, 2999497), (17, 1235087), (73, 287623), (119, 176441), (511, 41089), (1241, 16919), (2417, 8687)]