3997904

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{13151}}^1$

素因数の和:13178

約数の個数: 20

約数和(自身を含む): 8154240

約数和(自身を除く): 4156336

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 13151, 26302, 52604, 105208, 210416, 249869, 499738, 999476, 1998952, 3997904]

約数ペア:

[(1, 3997904), (2, 1998952), (4, 999476), (8, 499738), (16, 249869), (19, 210416), (38, 105208), (76, 52604), (152, 26302), (304, 13151)]