21266778

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{272651}}^1$

素因数の和:272669

約数の個数: 16

約数和(自身を含む): 45805536

約数和(自身を除く): 24538758

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 272651, 545302, 817953, 1635906, 3544463, 7088926, 10633389, 21266778]

約数ペア:

[(1, 21266778), (2, 10633389), (3, 7088926), (6, 3544463), (13, 1635906), (26, 817953), (39, 545302), (78, 272651)]