19822221

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{7621}}^1$

素因数の和:7661

約数の個数: 18

約数和(自身を含む): 30419402

約数和(自身を除く): 10597181

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 7621, 22863, 68589, 129557, 388671, 1166013, 2202469, 6607407, 19822221]

約数ペア:

[(1, 19822221), (3, 6607407), (9, 2202469), (17, 1166013), (51, 388671), (153, 129557), (289, 68589), (867, 22863), (2601, 7621)]