21395361

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{14827}}^1$

素因数の和:14880

約数の個数: 16

約数和(自身を含む): 31553984

約数和(自身を除く): 10158623

約数列:

[1, 3, 13, 37, 39, 111, 481, 1443, 14827, 44481, 192751, 548599, 578253, 1645797, 7131787, 21395361]

約数ペア:

[(1, 21395361), (3, 7131787), (13, 1645797), (37, 578253), (39, 548599), (111, 192751), (481, 44481), (1443, 14827)]