19654839

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{42821}}^1$

素因数の和:42847

約数の個数: 16

約数和(自身を含む): 30831840

約数和(自身を除く): 11177001

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 42821, 128463, 385389, 727957, 1156167, 2183871, 6551613, 19654839]

約数ペア:

[(1, 19654839), (3, 6551613), (9, 2183871), (17, 1156167), (27, 727957), (51, 385389), (153, 128463), (459, 42821)]