19866681

素因数分解:

$3^3\times {\mathrm{839}}^1\times {\mathrm{877}}^1$

素因数の和:1725

約数の個数: 16

約数和(自身を含む): 29500800

約数和(自身を除く): 9634119

約数列:

[1, 3, 9, 27, 839, 877, 2517, 2631, 7551, 7893, 22653, 23679, 735803, 2207409, 6622227, 19866681]

約数ペア:

[(1, 19866681), (3, 6622227), (9, 2207409), (27, 735803), (839, 23679), (877, 22653), (2517, 7893), (2631, 7551)]