19990862

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{1861}}^1$

素因数の和:2035

約数の個数: 16

約数和(自身を含む): 30968784

約数和(自身を除く): 10977922

約数列:

[1, 2, 41, 82, 131, 262, 1861, 3722, 5371, 10742, 76301, 152602, 243791, 487582, 9995431, 19990862]

約数ペア:

[(1, 19990862), (2, 9995431), (41, 487582), (82, 243791), (131, 152602), (262, 76301), (1861, 10742), (3722, 5371)]