20787651

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{45289}}^1$

素因数の和:45315

約数の個数: 16

約数和(自身を含む): 32608800

約数和(自身を除く): 11821149

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 45289, 135867, 407601, 769913, 1222803, 2309739, 6929217, 20787651]

約数ペア:

[(1, 20787651), (3, 6929217), (9, 2309739), (17, 1222803), (27, 769913), (51, 407601), (153, 135867), (459, 45289)]