21406859

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1033}}^1$

素因数の和:1126

約数の個数: 16

約数和(自身を含む): 24121152

約数和(自身を除く): 2714293

約数列:

[1, 17, 23, 53, 391, 901, 1033, 1219, 17561, 20723, 23759, 54749, 403903, 930733, 1259227, 21406859]

約数ペア:

[(1, 21406859), (17, 1259227), (23, 930733), (53, 403903), (391, 54749), (901, 23759), (1033, 20723), (1219, 17561)]