18589904

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{61151}}^1$

素因数の和:61178

約数の個数: 20

約数和(自身を含む): 37914240

約数和(自身を除く): 19324336

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 61151, 122302, 244604, 489208, 978416, 1161869, 2323738, 4647476, 9294952, 18589904]

約数ペア:

[(1, 18589904), (2, 9294952), (4, 4647476), (8, 2323738), (16, 1161869), (19, 978416), (38, 489208), (76, 244604), (152, 122302), (304, 61151)]