18911954

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{10589}}^1$

素因数の和:10657

約数の個数: 16

約数和(自身を含む): 30499200

約数和(自身を除く): 11587246

約数列:

[1, 2, 19, 38, 47, 94, 893, 1786, 10589, 21178, 201191, 402382, 497683, 995366, 9455977, 18911954]

約数ペア:

[(1, 18911954), (2, 9455977), (19, 995366), (38, 497683), (47, 402382), (94, 201191), (893, 21178), (1786, 10589)]