21700605

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{30781}}^1$

素因数の和:30836

約数の個数: 16

約数和(自身を含む): 35460864

約数和(自身を除く): 13760259

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 30781, 92343, 153905, 461715, 1446707, 4340121, 7233535, 21700605]

約数ペア:

[(1, 21700605), (3, 7233535), (5, 4340121), (15, 1446707), (47, 461715), (141, 153905), (235, 92343), (705, 30781)]