19407319

素因数分解:

${\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:390

約数の個数: 16

約数和(自身を含む): 21288960

約数和(自身を除く): 1881641

約数列:

[1, 17, 43, 139, 191, 731, 2363, 3247, 5977, 8213, 26549, 101609, 139621, 451333, 1141607, 19407319]

約数ペア:

[(1, 19407319), (17, 1141607), (43, 451333), (139, 139621), (191, 101609), (731, 26549), (2363, 8213), (3247, 5977)]