19909186

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{5231}}^1$

素因数の和:5417

約数の個数: 16

約数和(自身を含む): 32773248

約数和(自身を除く): 12864062

約数列:

[1, 2, 11, 22, 173, 346, 1903, 3806, 5231, 10462, 57541, 115082, 904963, 1809926, 9954593, 19909186]

約数ペア:

[(1, 19909186), (2, 9954593), (11, 1809926), (22, 904963), (173, 115082), (346, 57541), (1903, 10462), (3806, 5231)]