21511303

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{317}}^1$

素因数の和:558

約数の個数: 16

約数和(自身を含む): 24422400

約数和(自身を除く): 2911097

約数列:

[1, 11, 31, 199, 317, 341, 2189, 3487, 6169, 9827, 63083, 67859, 108097, 693913, 1955573, 21511303]

約数ペア:

[(1, 21511303), (11, 1955573), (31, 693913), (199, 108097), (317, 67859), (341, 63083), (2189, 9827), (3487, 6169)]