28416913

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{233}}^1$

素因数の和:397

約数の個数: 24

約数和(自身を含む): 35212320

約数和(自身を除く): 6795407

約数列:

[1, 7, 19, 49, 131, 133, 233, 917, 931, 1631, 2489, 4427, 6419, 11417, 17423, 30523, 30989, 121961, 213661, 216923, 579937, 1495627, 4059559, 28416913]

約数ペア:

[(1, 28416913), (7, 4059559), (19, 1495627), (49, 579937), (131, 216923), (133, 213661), (233, 121961), (917, 30989), (931, 30523), (1631, 17423), (2489, 11417), (4427, 6419)]