21500384353

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{1239001}}^1$

素因数の和:1239112

約数の個数: 16

約数和(自身を含む): 25612649344

約数和(自身を除く): 4112264991

約数列:

[1, 7, 37, 67, 259, 469, 2479, 17353, 1239001, 8673007, 45843037, 83013067, 320901259, 581091469, 3071483479, 21500384353]

約数ペア:

[(1, 21500384353), (7, 3071483479), (37, 581091469), (67, 320901259), (259, 83013067), (469, 45843037), (2479, 8673007), (17353, 1239001)]