258889771

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{34213}}^1$

素因数の和:34290

約数の個数: 16

約数和(自身を含む): 315316224

約数和(自身を除く): 56426453

約数列:

[1, 7, 23, 47, 161, 329, 1081, 7567, 34213, 239491, 786899, 1608011, 5508293, 11256077, 36984253, 258889771]

約数ペア:

[(1, 258889771), (7, 36984253), (23, 11256077), (47, 5508293), (161, 1608011), (329, 786899), (1081, 239491), (7567, 34213)]