17955987

素因数分解:

$3^1\times 7^1\times {\mathrm{457}}^1\times {\mathrm{1871}}^1$

素因数の和:2338

約数の個数: 16

約数和(自身を含む): 27436032

約数和(自身を除く): 9480045

約数列:

[1, 3, 7, 21, 457, 1371, 1871, 3199, 5613, 9597, 13097, 39291, 855047, 2565141, 5985329, 17955987]

約数ペア:

[(1, 17955987), (3, 5985329), (7, 2565141), (21, 855047), (457, 39291), (1371, 13097), (1871, 9597), (3199, 5613)]