12871551

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{55721}}^1$

素因数の和:55742

約数の個数: 16

約数和(自身を含む): 21397248

約数和(自身を除く): 8525697

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 55721, 167163, 390047, 612931, 1170141, 1838793, 4290517, 12871551]

約数ペア:

[(1, 12871551), (3, 4290517), (7, 1838793), (11, 1170141), (21, 612931), (33, 390047), (77, 167163), (231, 55721)]