16942989

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{647}}^1$

素因数の和:729

約数の個数: 32

約数和(自身を含む): 27371520

約数和(自身を除く): 10428531

約数列:

[1, 3, 7, 21, 29, 43, 87, 129, 203, 301, 609, 647, 903, 1247, 1941, 3741, 4529, 8729, 13587, 18763, 26187, 27821, 56289, 83463, 131341, 194747, 394023, 584241, 806809, 2420427, 5647663, 16942989]

約数ペア:

[(1, 16942989), (3, 5647663), (7, 2420427), (21, 806809), (29, 584241), (43, 394023), (87, 194747), (129, 131341), (203, 83463), (301, 56289), (609, 27821), (647, 26187), (903, 18763), (1247, 13587), (1941, 8729), (3741, 4529)]