81663903

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{177917}}^1$

素因数の和:177943

約数の個数: 16

約数和(自身を含む): 128100960

約数和(自身を除く): 46437057

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 177917, 533751, 1601253, 3024589, 4803759, 9073767, 27221301, 81663903]

約数ペア:

[(1, 81663903), (3, 27221301), (9, 9073767), (17, 4803759), (27, 3024589), (51, 1601253), (153, 533751), (459, 177917)]