28331821

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1\times {\mathrm{313}}^1$

素因数の和:580

約数の個数: 16

約数和(自身を含む): 33138304

約数和(自身を除く): 4806483

約数列:

[1, 7, 67, 193, 313, 469, 1351, 2191, 12931, 20971, 60409, 90517, 146797, 422863, 4047403, 28331821]

約数ペア:

[(1, 28331821), (7, 4047403), (67, 422863), (193, 146797), (313, 90517), (469, 60409), (1351, 20971), (2191, 12931)]