20779563

素因数分解:

$3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{6553}}^1$

素因数の和:6714

約数の個数: 16

約数和(自身を含む): 31878656

約数和(自身を除く): 11099093

約数列:

[1, 3, 7, 21, 151, 453, 1057, 3171, 6553, 19659, 45871, 137613, 989503, 2968509, 6926521, 20779563]

約数ペア:

[(1, 20779563), (3, 6926521), (7, 2968509), (21, 989503), (151, 137613), (453, 45871), (1057, 19659), (3171, 6553)]