21439329

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{3209}}^1$

素因数の和:3360

約数の個数: 16

約数和(自身を含む): 30507840

約数和(自身を除く): 9068511

約数列:

[1, 3, 17, 51, 131, 393, 2227, 3209, 6681, 9627, 54553, 163659, 420379, 1261137, 7146443, 21439329]

約数ペア:

[(1, 21439329), (3, 7146443), (17, 1261137), (51, 420379), (131, 163659), (393, 54553), (2227, 9627), (3209, 6681)]