28380129

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{11579}}^1$

素因数の和:11644

約数の個数: 16

約数和(自身を含む): 40761600

約数和(自身を除く): 12381471

約数列:

[1, 3, 19, 43, 57, 129, 817, 2451, 11579, 34737, 220001, 497897, 660003, 1493691, 9460043, 28380129]

約数ペア:

[(1, 28380129), (3, 9460043), (19, 1493691), (43, 660003), (57, 497897), (129, 220001), (817, 34737), (2451, 11579)]