19863949

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{641}}^1$

素因数の和:900

約数の個数: 16

約数和(自身を含む): 24036480

約数和(自身を除く): 4172531

約数列:

[1, 7, 19, 133, 233, 641, 1631, 4427, 4487, 12179, 30989, 85253, 149353, 1045471, 2837707, 19863949]

約数ペア:

[(1, 19863949), (7, 2837707), (19, 1045471), (133, 149353), (233, 85253), (641, 30989), (1631, 12179), (4427, 4487)]