18685431

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{40709}}^1$

素因数の和:40735

約数の個数: 16

約数和(自身を含む): 29311200

約数和(自身を除く): 10625769

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 40709, 122127, 366381, 692053, 1099143, 2076159, 6228477, 18685431]

約数ペア:

[(1, 18685431), (3, 6228477), (9, 2076159), (17, 1099143), (27, 692053), (51, 366381), (153, 122127), (459, 40709)]