21536151

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{78887}}^1$

素因数の和:78910

約数の個数: 16

約数和(自身を含む): 35341824

約数和(自身を除く): 13805673

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 78887, 236661, 552209, 1025531, 1656627, 3076593, 7178717, 21536151]

約数ペア:

[(1, 21536151), (3, 7178717), (7, 3076593), (13, 1656627), (21, 1025531), (39, 552209), (91, 236661), (273, 78887)]