28880817

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{72383}}^1$

素因数の和:72412

約数の個数: 16

約数和(自身を含む): 46325760

約数和(自身を除く): 17444943

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 72383, 217149, 506681, 1375277, 1520043, 4125831, 9626939, 28880817]

約数ペア:

[(1, 28880817), (3, 9626939), (7, 4125831), (19, 1520043), (21, 1375277), (57, 506681), (133, 217149), (399, 72383)]