18478605

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{28649}}^1$

素因数の和:28700

約数の個数: 16

約数和(自身を含む): 30254400

約数和(自身を除く): 11775795

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 28649, 85947, 143245, 429735, 1231907, 3695721, 6159535, 18478605]

約数ペア:

[(1, 18478605), (3, 6159535), (5, 3695721), (15, 1231907), (43, 429735), (129, 143245), (215, 85947), (645, 28649)]