19999894

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{1873}}^1$

素因数の和:2175

約数の個数: 16

約数和(自身を含む): 31708080

約数和(自身を除く): 11708186

約数列:

[1, 2, 19, 38, 281, 562, 1873, 3746, 5339, 10678, 35587, 71174, 526313, 1052626, 9999947, 19999894]

約数ペア:

[(1, 19999894), (2, 9999947), (19, 1052626), (38, 526313), (281, 71174), (562, 35587), (1873, 10678), (3746, 5339)]