208170009

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{3221}}^1$

素因数の和:3437

約数の個数: 24

約数和(自身を含む): 309621312

約数和(自身を除く): 101451303

約数列:

[1, 3, 9, 43, 129, 167, 387, 501, 1503, 3221, 7181, 9663, 21543, 28989, 64629, 138503, 415509, 537907, 1246527, 1613721, 4841163, 23130001, 69390003, 208170009]

約数ペア:

[(1, 208170009), (3, 69390003), (9, 23130001), (43, 4841163), (129, 1613721), (167, 1246527), (387, 537907), (501, 415509), (1503, 138503), (3221, 64629), (7181, 28989), (9663, 21543)]