20776438

素因数分解:

$2^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1\times {\mathrm{521}}^1$

素因数の和:807

約数の個数: 16

約数和(自身を含む): 31670784

約数和(自身を除く): 10894346

約数列:

[1, 2, 127, 157, 254, 314, 521, 1042, 19939, 39878, 66167, 81797, 132334, 163594, 10388219, 20776438]

約数ペア:

[(1, 20776438), (2, 10388219), (127, 163594), (157, 132334), (254, 81797), (314, 66167), (521, 39878), (1042, 19939)]