20416874

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1\times {\mathrm{523}}^1$

素因数の和:805

約数の個数: 16

約数和(自身を含む): 31125600

約数和(自身を除く): 10708726

約数列:

[1, 2, 131, 149, 262, 298, 523, 1046, 19519, 39038, 68513, 77927, 137026, 155854, 10208437, 20416874]

約数ペア:

[(1, 20416874), (2, 10208437), (131, 155854), (149, 137026), (262, 77927), (298, 68513), (523, 39038), (1046, 19519)]