28867137

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{239}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 44083200

約数和(自身を除く): 15216063

約数列:

[1, 3, 13, 19, 39, 57, 163, 239, 247, 489, 717, 741, 2119, 3097, 3107, 4541, 6357, 9291, 9321, 13623, 38957, 40261, 59033, 116871, 120783, 177099, 506441, 740183, 1519323, 2220549, 9622379, 28867137]

約数ペア:

[(1, 28867137), (3, 9622379), (13, 2220549), (19, 1519323), (39, 740183), (57, 506441), (163, 177099), (239, 120783), (247, 116871), (489, 59033), (717, 40261), (741, 38957), (2119, 13623), (3097, 9321), (3107, 9291), (4541, 6357)]