18506421

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1753}}^1$

素因数の和:1802

約数の個数: 32

約数和(自身を含む): 30309120

約数和(自身を除く): 11802699

約数列:

[1, 3, 9, 17, 23, 27, 51, 69, 153, 207, 391, 459, 621, 1173, 1753, 3519, 5259, 10557, 15777, 29801, 40319, 47331, 89403, 120957, 268209, 362871, 685423, 804627, 1088613, 2056269, 6168807, 18506421]

約数ペア:

[(1, 18506421), (3, 6168807), (9, 2056269), (17, 1088613), (23, 804627), (27, 685423), (51, 362871), (69, 268209), (153, 120957), (207, 89403), (391, 47331), (459, 40319), (621, 29801), (1173, 15777), (1753, 10557), (3519, 5259)]