20811286

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{1231}}^1$

素因数の和:1419

約数の個数: 16

約数和(自身を含む): 31933440

約数和(自身を除く): 11122154

約数列:

[1, 2, 79, 107, 158, 214, 1231, 2462, 8453, 16906, 97249, 131717, 194498, 263434, 10405643, 20811286]

約数ペア:

[(1, 20811286), (2, 10405643), (79, 263434), (107, 194498), (158, 131717), (214, 97249), (1231, 16906), (2462, 8453)]