217872545

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{67141}}^1$

素因数の和:67216

約数の個数: 16

約数和(自身を含む): 290053440

約数和(自身を除く): 72180895

約数列:

[1, 5, 11, 55, 59, 295, 649, 3245, 67141, 335705, 738551, 3692755, 3961319, 19806595, 43574509, 217872545]

約数ペア:

[(1, 217872545), (5, 43574509), (11, 19806595), (55, 3961319), (59, 3692755), (295, 738551), (649, 335705), (3245, 67141)]