20980906

素因数分解:

$2^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1\times {\mathrm{1303}}^1$

素因数の和:1485

約数の個数: 16

約数和(自身を含む): 32203584

約数和(自身を除く): 11222678

約数列:

[1, 2, 83, 97, 166, 194, 1303, 2606, 8051, 16102, 108149, 126391, 216298, 252782, 10490453, 20980906]

約数ペア:

[(1, 20980906), (2, 10490453), (83, 252782), (97, 216298), (166, 126391), (194, 108149), (1303, 16102), (2606, 8051)]