20786986

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41081}}^1$

素因数の和:41117

約数の個数: 16

約数和(自身を含む): 35494848

約数和(自身を除く): 14707862

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 41081, 82162, 451891, 903782, 944863, 1889726, 10393493, 20786986]

約数ペア:

[(1, 20786986), (2, 10393493), (11, 1889726), (22, 944863), (23, 903782), (46, 451891), (253, 82162), (506, 41081)]