19249251

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{21317}}^1$

素因数の和:21370

約数の個数: 16

約数和(自身を含む): 30015744

約数和(自身を除く): 10766493

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 21317, 63951, 149219, 447657, 916631, 2749893, 6416417, 19249251]

約数ペア:

[(1, 19249251), (3, 6416417), (7, 2749893), (21, 916631), (43, 447657), (129, 149219), (301, 63951), (903, 21317)]