21342256

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{102607}}^1$

素因数の和:102628

約数の個数: 20

約数和(自身を含む): 44531872

約数和(自身を除く): 23189616

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 102607, 205214, 410428, 820856, 1333891, 1641712, 2667782, 5335564, 10671128, 21342256]

約数ペア:

[(1, 21342256), (2, 10671128), (4, 5335564), (8, 2667782), (13, 1641712), (16, 1333891), (26, 820856), (52, 410428), (104, 205214), (208, 102607)]