16181289

素因数分解:

$3^4\times {\mathrm{107}}^1\times {\mathrm{1867}}^1$

素因数の和:1986

約数の個数: 20

約数和(自身を含む): 24411024

約数和(自身を除く): 8229735

約数列:

[1, 3, 9, 27, 81, 107, 321, 963, 1867, 2889, 5601, 8667, 16803, 50409, 151227, 199769, 599307, 1797921, 5393763, 16181289]

約数ペア:

[(1, 16181289), (3, 5393763), (9, 1797921), (27, 599307), (81, 199769), (107, 151227), (321, 50409), (963, 16803), (1867, 8667), (2889, 5601)]