20494658

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{5419}}^1$

素因数の和:5513

約数の個数: 16

約数和(自身を含む): 32259840

約数和(自身を除く): 11765182

約数列:

[1, 2, 31, 61, 62, 122, 1891, 3782, 5419, 10838, 167989, 330559, 335978, 661118, 10247329, 20494658]

約数ペア:

[(1, 20494658), (2, 10247329), (31, 661118), (61, 335978), (62, 330559), (122, 167989), (1891, 10838), (3782, 5419)]