18036921

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{6763}}^1$

素因数の和:6900

約数の個数: 16

約数和(自身を含む): 27705344

約数和(自身を除く): 9668423

約数列:

[1, 3, 7, 21, 127, 381, 889, 2667, 6763, 20289, 47341, 142023, 858901, 2576703, 6012307, 18036921]

約数ペア:

[(1, 18036921), (3, 6012307), (7, 2576703), (21, 858901), (127, 142023), (381, 47341), (889, 20289), (2667, 6763)]