17919921

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{15277}}^1$

素因数の和:15320

約数の個数: 16

約数和(自身を含む): 26400384

約数和(自身を除く): 8480463

約数列:

[1, 3, 17, 23, 51, 69, 391, 1173, 15277, 45831, 259709, 351371, 779127, 1054113, 5973307, 17919921]

約数ペア:

[(1, 17919921), (3, 5973307), (17, 1054113), (23, 779127), (51, 351371), (69, 259709), (391, 45831), (1173, 15277)]