21383128

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{205607}}^1$

素因数の和:205626

約数の個数: 16

約数和(自身を含む): 43177680

約数和(自身を除く): 21794552

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 205607, 411214, 822428, 1644856, 2672891, 5345782, 10691564, 21383128]

約数ペア:

[(1, 21383128), (2, 10691564), (4, 5345782), (8, 2672891), (13, 1644856), (26, 822428), (52, 411214), (104, 205607)]