21658885

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{769}}^1$

素因数の和:948

約数の個数: 16

約数和(自身を含む): 26832960

約数和(自身を除く): 5174075

約数列:

[1, 5, 43, 131, 215, 655, 769, 3845, 5633, 28165, 33067, 100739, 165335, 503695, 4331777, 21658885]

約数ペア:

[(1, 21658885), (5, 4331777), (43, 503695), (131, 165335), (215, 100739), (655, 33067), (769, 28165), (3845, 5633)]