19866590

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{104561}}^1$

素因数の和:104587

約数の個数: 16

約数和(自身を含む): 37642320

約数和(自身を除く): 17775730

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 104561, 209122, 522805, 1045610, 1986659, 3973318, 9933295, 19866590]

約数ペア:

[(1, 19866590), (2, 9933295), (5, 3973318), (10, 1986659), (19, 1045610), (38, 522805), (95, 209122), (190, 104561)]